Secretly made by Sony - Inside the 5 Core radio

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  • เผยแพร่เมื่อ 7 เม.ย. 2021
  • By popular demand, a look inside the Indian-made 5 Core T-22 (a.k.a. TC-22) radio, revealing the surprising manufacturer of its main chip.
    *Correction:* The unknown music station is actually 830 WCRN from Worcester, Massachusetts, not 920 kHz as I said in the video. They play '60s-'80s music from 7:00 PM to 4:00 AM (Eastern time).
    Original video about the 5 Core radio: • Searching for the last...
    Nina Gajjar's FM radio based on the Sony CXA1619 chip: www.foxdelta.net/fmradio.html
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ความคิดเห็น • 626

  • @vwestlife
    @vwestlife  3 ปีที่แล้ว +140

    *Correction:* The unknown music station is actually 830 WCRN from Worcester, Massachusetts, not 920 kHz as I said in the video. They play '60s-'80s music from 7:00 PM to 4:00 AM (Eastern time).

    • @DriveInFreak
      @DriveInFreak 3 ปีที่แล้ว +15

      It's nice to see that they're still getting it done. I'm at and on an AM music station myself. There's not a lot of us left.

    • @TheMordecailover569
      @TheMordecailover569 3 ปีที่แล้ว +3

      @@DriveInFreak And what station might that be for nearby listeners?

    • @Cameron5540
      @Cameron5540 3 ปีที่แล้ว +5

      I used to listen to 830 wcrn alot when I was younger, funny to see it here

    • @ObsessionoftheMonth
      @ObsessionoftheMonth 3 ปีที่แล้ว +1

      now you just need to do some mods to it. th-cam.com/video/l6mzcWa6a3k/w-d-xo.html

    • @circuitblog01
      @circuitblog01 3 ปีที่แล้ว +5

      Thank you for posting
      I posted a video on the original panasonic from 2 years a go it has a transformer amplifire out put circuit and the rf/ if circuit is (AN) series
      This one use the cxa1619 normal pins and there is an smd type of the same ic it is made in china under license from sony corp
      I work in cxa1xxxx alot and the cool thing that the volume pot dos not control the audio signal it dos control a voltage and the voltage it is feed to an elctronic volume control circuit that feed it to the in chip amplifire

  • @skarumuru
    @skarumuru 3 ปีที่แล้ว +74

    These cost 10-12$ in India.
    Good to know these sets reached US of A, there is still a huge cottage industry in India and radio listening is still very big in rural areas. I built quite a few of these with AF113 and AC128 transistors( old BEL India numbers) in my days mid 70s prior to CXA made appearance. Most of the capacitor and transformer s are still hand built in India in small workshop s with not more than 5-8 people.
    Good old days.

    • @andygozzo72
      @andygozzo72 2 ปีที่แล้ว +1

      ac128s were very common germanium types here in the uk and eu, early 60s to early 70s, japanese equivalent 2sb56, dunno a usa equivalent off hand, never come across af113 but plenty of af114/115/116/117 and similar af124 to 127

    • @vinsan98
      @vinsan98 ปีที่แล้ว

      Hi @Srinivasa,
      I'm From Maharashtra, India and I can't seem to find the Radio on any Indian e-commerce site of any such.
      Do yoy know where can I buy this radio online?
      Thank you.

    • @KMon1111IND
      @KMon1111IND ปีที่แล้ว

      ​@@vinsan98 search in local small electronic stores neither the e-commerce nor the big electronic stores will have these. About 12 years ago I bought one analogue pocket radio from such a store.

  • @thewrightwilliams
    @thewrightwilliams 3 ปีที่แล้ว +87

    Bought one based on your last video and I cannot believe how good this thing works for something that looks so cheap. It is straight up the best sounding AM radio I have ever used.

    • @dracoony
      @dracoony 3 ปีที่แล้ว +6

      Isn't it to Hi-Fi for Black Metal then? ;)

    • @jamesslick4790
      @jamesslick4790 3 ปีที่แล้ว +5

      Analog is the best for MW and SW (AM) radio IMHO. Any one of my "vintage" analog pocket radios beat my newer and supposedly "better" digital based radios for AM reception. I am definitely going to get one of these!

    • @qwertykeyboard5901
      @qwertykeyboard5901 2 ปีที่แล้ว +1

      @@jamesslick4790 even my really cheap and nasty sentry radio sounds good on am due to it using an analog radio on a chip.

    • @jamesslick4790
      @jamesslick4790 2 ปีที่แล้ว

      @@qwertykeyboard5901 Yep. Digital processors cause interference on AM. Some can't be heard due to the frequency, But it "masks" the incoming signal. AM and (SW) need analog! Digital radios that ARE OK on AM and SW are EXPENSIVE. A cheap $20 analog AM radio will pull in AM DX stations far better than $100 digital ones!

  • @stanwbaker
    @stanwbaker 3 ปีที่แล้ว +73

    1. My T-22 arrived two days ago and I've already broken the top section of the antenna. A new record.
    2. I'm all the way down in Kentucky and CFZM sounds even better on my T-22. May as well be listening to Stereo 89 WLS in 1984.

    • @veerapvvp8200
      @veerapvvp8200 2 ปีที่แล้ว

      From where u get it?

    • @rootbrian4815
      @rootbrian4815 2 ปีที่แล้ว

      Guess you've got to replace the antenna, or jam a precision long screwdriver into the hole (must fit snug) like I once did. LOL

    • @user-cj7zl5jc6i
      @user-cj7zl5jc6i 2 ปีที่แล้ว

      I got a tecsun and the antenna snapped off. I just measured it and ordered a higher quality antenna off ebay

  • @RandomRetr0
    @RandomRetr0 3 ปีที่แล้ว +138

    Plenty of room inside to mod.
    1) Add an earphone socket
    2) Add an external antenna socket/bypass the ferrite rod for shortwave reception
    3) Add a charger/charger port

    • @hugoromeyn4582
      @hugoromeyn4582 3 ปีที่แล้ว +45

      Be careful when you modify anything near the ferrite rod. In some receivers (not all) that part is also in use as a pre-selector. Modifying that can cause a different inductance and "out of sync" operation between the local oscillator and the pre-selector. (They are both simultaneously tuned by two variable capacitors in the tuning cap block). Result will be a very poor of even no reception. If you are not sure about how the circuitry was designed, leave everything connected the way it is and put a coupling coil on the rod itself. That coil can be connected to an external antenna. You can safely experiment with the number of turns of the coil, to find the best coupling between your external antenna and the receiver itself.

    • @heedmywarning2792
      @heedmywarning2792 3 ปีที่แล้ว +1

      no bluetooth?

    • @RandomRetr0
      @RandomRetr0 3 ปีที่แล้ว +10

      @@heedmywarning2792 Bluetooth is an abomination 😂

    • @erzahler1930
      @erzahler1930 3 ปีที่แล้ว +8

      @@heedmywarning2792 Bluetooth negates the whole idea of this receiver.

    • @erzahler1930
      @erzahler1930 3 ปีที่แล้ว +5

      @@hugoromeyn4582 Better yet, find an early-70's transistorized AM receiver with a dual-ganged, air-gap tuning capacitor. All discrete components, no chips (except maybe an occasional voltage regulator). Nothing but transistors, resistors, capacitors, I.F. reactor coils, power and output transformers, and a big, honkin' speaker. Add a jack for an external long-wire antenna, and you're in business! 📻👍

  • @gunnerl9315
    @gunnerl9315 3 ปีที่แล้ว +87

    *slaps cover of battery compartment*
    This bad boy can fit 1 power supply

  • @bobriemersma
    @bobriemersma 3 ปีที่แล้ว +131

    Almost seems like somebody bought some old factory tooling, molds, etc. and cobbled some modifications to start making radios with it again.

    • @claudiodiaz9752
      @claudiodiaz9752 3 ปีที่แล้ว +46

      The poor result of the mold could actually be a indication that the molds are old. In my country there is a discontinued train model toy that still has many fans due to nostalgia. By massive request, the toy company retrieved the old molds and made a limited edition of said toy, and you could clearly notice the difference by comparing the new and the old parts, the old ones are much smoother.

    • @Eddies_Bra-att-ha-grejer
      @Eddies_Bra-att-ha-grejer 3 ปีที่แล้ว +25

      @@claudiodiaz9752 The same with Unicomp keyboards. They recently made new tooling because the worn out molds impacted quality too much.

    • @jonlouis2582
      @jonlouis2582 3 ปีที่แล้ว +3

      Right. I want one.

    • @OzRetrocomp
      @OzRetrocomp 3 ปีที่แล้ว +27

      India is famous for buying proven designs and tooling, and then manufacturing products for decades after said product's EOL in Western markets. Royal Enfield motorcycles and the Hindustan Ambassador (a car that was in production from the early 1960s until the early 2010s, based on a 1950s Morris from England) are just two of the better known examples.
      As well as a 5 Core radio, I also want a Royal Enfield. Go figure.

    • @irtbmtind89
      @irtbmtind89 3 ปีที่แล้ว +9

      @@claudiodiaz9752 When companies in Southern Europe like Lima and Mehano would use the same tooling for decades you could definitely see the difference between otherwise identical models of different eras. I think modern train models have too short runs for this to be a thing anymore (and they are way too expensive now unfortunately).

  • @hadireg
    @hadireg 3 ปีที่แล้ว +40

    very famous chip indeed, many of the multiband receivers in late 90's were holding an cxa1619 in a smaller package. glad to see they're still in use.

    • @nickwallette6201
      @nickwallette6201 3 ปีที่แล้ว +4

      I wonder if they're still being made? I checked DigiKey, and I'm not surprised to find I can't buy one there. I don't know Sony's procurement process though. Retail standalone parts houses are probably not their typical avenue.

    • @vwestlife
      @vwestlife  3 ปีที่แล้ว +16

      The CXA1619 has been discontinued. 5 Core either bought up a large stock of remaining inventory, or may even be using used chips reclaimed from recycled radios.

    • @hadireg
      @hadireg 3 ปีที่แล้ว +10

      @@vwestlife Yeah that's likely what's happening! allowing another life for those ICs in a real analog receiver, that's a winner recycling 🙂

    • @VENUGPL1
      @VENUGPL1 3 ปีที่แล้ว +3

      These chips are available most of the local Indian electronic spare part shops just for a half €....all new... some shops sells cd1619 ic instead of cxa, maybe a copied version

    • @mjouwbuis
      @mjouwbuis 3 ปีที่แล้ว

      @@VENUGPL1 CD1619 is likely a Chinese clone of this chip.

  • @amritavaroy2778
    @amritavaroy2778 3 ปีที่แล้ว +5

    Tell me, how did you find it?!!? I'm from India and 46 years old and never seen this radio in India in my life!!!!! I'm pretty aware of almost all of the electronics brands that were and are available in India. For eg. the now non-existing Bush, Murphy, Philips and others... but never seen this thing. A nice surprise indeed!!

  • @curtchase3730
    @curtchase3730 3 ปีที่แล้ว +78

    There should be a badge exclaiming "ONE Transistor" LOL.

    • @KRAFTWERK2K6
      @KRAFTWERK2K6 3 ปีที่แล้ว +13

      "ONE Transistor solid state" :]

    • @SarahRWilson
      @SarahRWilson 3 ปีที่แล้ว +3

      The one transistor is likely an RF amplifier for the shortwave band.

    • @ianuragaggarwal
      @ianuragaggarwal 2 ปีที่แล้ว

      Solid state one transistor

  • @OzRetrocomp
    @OzRetrocomp 3 ปีที่แล้ว +36

    I love how simple and effective this radio is, it seems like such an honest product. It looks like there's very little to go wrong. Even if a component _does_ fail, the components look cheap and easy to replace. I wonder if that eBay seller delivers to Australia...

    • @hagen-p
      @hagen-p 3 ปีที่แล้ว +5

      In the cold war times, it was recommended to keep such a simple radio at home for emergencies. Their circuits are so simple and robust that they have a good chance to survive even the electromagnetic pulse (EMP) of a nuclear strike. Most more complex circuits will be killed by an EMP.

    • @andygozzo72
      @andygozzo72 2 ปีที่แล้ว +2

      its possible to make an even simpler am radio using a 'trf' chip/circuit, but has worse selectivity ,so a strong signal can swamp out nearby weaker signals , but perfectly ok if you just want to pick up a strong/local station

  • @paulkane2391
    @paulkane2391 3 ปีที่แล้ว +33

    A good sounding radio - I don't need one, but I'm glad they're still available.

    • @pradeepkumarpanda7626
      @pradeepkumarpanda7626 9 หลายเดือนก่อน

      More than two dozen local radio manufacturers in India are using Sony CXA 1619 chip along with 2 transistors. And these radios are available in India at throw away price. This Sony chip is available in India at $0.5 (fifty cents). But possessing these radios are not seen prestigious in India. So only farmers and small shop keepers buy them.

  • @anirbannaskar7665
    @anirbannaskar7665 3 ปีที่แล้ว +11

    CXA1619 was the most popular chip used for these 'analog' purpose in India until analog fm was replaced by PLL Synthesisers embedded in all in one USB chips. I would say it was a fabulous chip and produced robust reception with minimal passive components. They were also used in some mid-cheap 'hifi' systems accompanied with a stereo demultiplexer. These chips are still available in a readymade plug and play fm kit in India at a price of approximately 50 cents (USD). Now it is upto speculation whether it is really SONY or not!

  • @VENUGPL1
    @VENUGPL1 3 ปีที่แล้ว +5

    This chip is so popular in India used in most of the local brands and DIY circuit boards...sound quality is exceptional...some people use the the built-in amplifier inside the chip and some uses separate high wattage amps

  • @Melmelbaton
    @Melmelbaton 3 ปีที่แล้ว +81

    song: 🎵It's time to move to another track🎵
    vwestlife: changes track on his 8-track player
    I love a good visual pun

    • @OzRetrocomp
      @OzRetrocomp 3 ปีที่แล้ว +4

      I saw (heard?) what Kevin did there lol

    • @markanderson350
      @markanderson350 3 ปีที่แล้ว +2

      Lots of canadian content in this. Ian thomas on a canadian station, yes it's time. Click. They are quite a good station too. Lots of educational shows like gardening, repairing cars, finance etc.

    • @kareno8634
      @kareno8634 3 ปีที่แล้ว

      Noting that is a way One Knows you [were] Really -here- Hear.

  • @donpalmera
    @donpalmera 3 ปีที่แล้ว +30

    I'm not sure why something having a sony chip in it is surprising. Sony video encoders are in everything including rival products like the sega saturn. The semiconductor unit and consumer products units aren't the same thing.

    • @bened22
      @bened22 3 ปีที่แล้ว +4

      Yeah, it was just a little click bait.

    • @Broken_Yugo
      @Broken_Yugo 3 ปีที่แล้ว +13

      Surprising they went for a quality solution in such a cheap looking product and not some Chinese knockoff chip. I expected to see a mystery chip or nothing but transistors and IF cans.

    • @westelaudio943
      @westelaudio943 3 ปีที่แล้ว +4

      @@Broken_Yugo
      Discrete transistor construction would be more expensive than even a branded chip.

  • @reginaldobsb2
    @reginaldobsb2 3 ปีที่แล้ว +12

    That circuit board brought me memories... I used to repair portable radios back in the 1990's and I saw many boards that looked pretty much the same.

    • @hagen-p
      @hagen-p 3 ปีที่แล้ว +2

      Memories for me, too.
      When I started with electronics at 12 years, having not much money, I asked a local radio shop if they had some 'broken devices' (=that were not worthwhile to repair or that people did not pick up) for me, to take apart, learn from them, and use for parts. They were nice and gave me quite a few ones (over the course of a few years, before everything became highly integrated).
      Some of the devices worked fine, maybe the repair was just too expensive for the owner, or they got a new one and did not bother to pick it up. (One memorable clock-radio served me well a couple of years until finally the mechanical clock mechanism broke - the motor became unbearably loud - and then I would finally disassemble it and get some components out.)
      I got a lot of passive and active components from these radios for my own experiments. And it was good soldering practice. Got a lot of respect for some of the mechanical designs, too.

  • @douglasallen9428
    @douglasallen9428 3 ปีที่แล้ว +71

    Nothing beats waking up on a Thursday morning and watching a new VWestlife video.......

    • @emilycampbell6375
      @emilycampbell6375 3 ปีที่แล้ว +7

      agreed, his videos are so comfy and relaxing to watch

  • @LightTheUnicorn
    @LightTheUnicorn 3 ปีที่แล้ว +16

    Sweet! It may not look all that great on the outside, but it sure does seem to have a solid heart!

  • @okbridges
    @okbridges 3 ปีที่แล้ว +13

    According to the datasheet this uses the traditional 455kc IF frequency on the AM band. It also features AVC on the AM band, and AFC on FM band for stable, drift free reception.
    Pretty good for what it is!

  • @briangoldberg4439
    @briangoldberg4439 3 ปีที่แล้ว +28

    "It's good to know that someone didn't sneak in here and replace it." lmao

    • @hagen-p
      @hagen-p 3 ปีที่แล้ว +1

      A quick look at 5core.com reveals that they do all sorts of audio products, and also make their own speakers.

  • @JohnAudioTech
    @JohnAudioTech 3 ปีที่แล้ว +13

    The Panasonic RF 2400 (not the D version) uses this chip. A very good radio with good sound quality.

  • @subzeroarctics1299
    @subzeroarctics1299 3 ปีที่แล้ว +12

    There's something warm and comforting about it for sure

  • @DolganoFF
    @DolganoFF 3 ปีที่แล้ว +15

    In current Sony lineup, at least the ICF-306 is based on the same chip (they have smaller P26 and P36 - not sure if those are analog or digital tuners, but the 306 is analog for sure). This radio is 2 band AM/FM, the finish is much better than the 5 Core and it sounds very well. Can be had for not much more money (and no far away shipping...)

    • @dilipdas5777
      @dilipdas5777 ปีที่แล้ว

      And what about sony Icf 19?

  • @stephen1r2
    @stephen1r2 3 ปีที่แล้ว +8

    It even has 5 tuning cores just like they said.
    It really needs a nicer case, AC-DC board, and an amp to actually use that speaker

    • @johnstone7697
      @johnstone7697 3 ปีที่แล้ว +1

      The IC can output about 1/2 watt into 4 ohms, which is more than good enough for a portable radio. Most older transistor sets had considerably less power.

  • @bricanban
    @bricanban 3 ปีที่แล้ว +52

    HAHA! Thanks for the WLNG plug! Yes I did tell him to stay way from CARTS!

    • @pixoariz
      @pixoariz 3 ปีที่แล้ว +1

      I could never get over the ones that clicked into noisy fast forward mode. What was THAT about?

    • @jimmartin7881
      @jimmartin7881 3 ปีที่แล้ว +1

      THE CANNON!! How cool is that?! Even though I moved off the island to upstate NY I still listen to the 5 o'clock whistle and WLNG every day.

  • @uxwbill
    @uxwbill 3 ปีที่แล้ว +16

    A third battery was the first thing I thought of, especially as the cord was clearly intended to be detachable. I've never seen a radio with a detachable cord also equipped to store the cord. Still, I'm pretty sure it was a law that the cord compartment on a radio could not be big enough to comfortably store the cord without jumping up and down on the radio to get it packed in there.
    The shortwave on my example works great, but the speaker sounds like it's either blown or binding.

    • @jordanch68
      @jordanch68 3 ปีที่แล้ว +3

      Lift the board and check the solder connections, they missed 6 connections on mine.

    • @horseathalt7308
      @horseathalt7308 3 ปีที่แล้ว

      @uxwbill
      Also notice the battery spring terminal. They clearly stretched it to match the two battery cell length

    • @fixman88
      @fixman88 3 ปีที่แล้ว

      @@jordanch68 I got one last year and if I remember right it had some issues, so I put it aside to look at it later. If it can work as well as the video indicates I need to open mine up and take a look.

  • @twocvbloke
    @twocvbloke 3 ปีที่แล้ว +48

    Can't beat a genuine Sorny or Panaphonics, just be careful of those Magnetbox ones though... :P

  • @saintmichael1779
    @saintmichael1779 3 ปีที่แล้ว +13

    "Everybody Plays the Fool" (The Main Ingredient) was popular in my senior year of high school. It's got a hook that once it's in your head is there to stay.

  • @MTNDEWGANG
    @MTNDEWGANG 3 ปีที่แล้ว +19

    Might pick it up for the novelty. Stuff like this wont be around forever.

  • @joeblow8593
    @joeblow8593 3 ปีที่แล้ว +14

    4:06 Look at CF1 on the circuit board, there are two spots for a CF2 and a CF3. The CF3 spot has a jumper on it. My guess is that CF2 and CF3 could have been for two additional FM ceramic filters. Some are asking "so what"? Well, if you have more FM ceramic filters in the radio. The radio should be more selective on FM. If you replace the existing 230 khz Ceramic Filter with a 180 khz or 150 khz filter, your radio will be much more selective than before and should be better for FM Dxing. What that means for you is, you should be able to pick up the Philadelphia FM stations (like 98.1 WOGL) right next to your NYC and Central NJ locals (WMGQ 98.3) with just one simple ceramic FM filter change.

    • @jordanch68
      @jordanch68 3 ปีที่แล้ว +8

      The CXA1619BM/BS datasheet has the values for CF1, CF2, and CF3 and shows the circuit. This IC was designed to use them so it may be worthwhile to add them and see how it works. I've got two of these radios so I can compare the difference.

  • @gordonfreeman320
    @gordonfreeman320 3 ปีที่แล้ว +6

    What a fun video! Glad someone still makes decent cost-effective analogue radios!

  • @igorszamaszow171
    @igorszamaszow171 3 ปีที่แล้ว +15

    I wouldn't be surprised if the entire circuit board happens to be lifted from an old Sony product. It can also explain 4.5V and a "spare" cell -- as if they were working on something else, and then decided to use an existing design which just works perfectly on 3V.

    • @AaronOfMpls
      @AaronOfMpls 3 ปีที่แล้ว +9

      As someone else commented, 5 Core is probably re-using molds from an older radio that had more discrete components instead of that chip -- and needed 4.5 volts to run them.

    • @MrDuncl
      @MrDuncl 3 ปีที่แล้ว +5

      A good component manufacturer will supply information like that. One of Sony's many business activities is as a component supplier. They sell far more cellphone camera modules than they sell phones themselves.

    • @horseathalt7308
      @horseathalt7308 3 ปีที่แล้ว +2

      Quite a few sony portables from the 90s used 4.5v as power

    • @jamesslick4790
      @jamesslick4790 3 ปีที่แล้ว +3

      @@horseathalt7308 Yep, And it drove me crazy. I would buy a 4 pack of batteries and ALWAYS misplace the 4th one, so I was wasting 25% of my battery budget. I used to think they were in cahoots with the battery companies, LOL

    • @horseathalt7308
      @horseathalt7308 3 ปีที่แล้ว +2

      @@jamesslick4790 sony offered there own branded batteries. Probably made by someone else but also offered their own sony ac adapter which provided exactly 4.5v and the correct jack too. I think they sold tons of those.

  • @DinukaD
    @DinukaD 3 ปีที่แล้ว +32

    Sony CXA series is very popular among both 3rd party and armature radio units. No surprise at all!

    • @mjouwbuis
      @mjouwbuis 3 ปีที่แล้ว +1

      CXA series? That also includes most analogue chips for TV sets, cassette decks, DVD and video players, professional electronics, etc. You might want to be more specific ;-)

  • @BessieBopOrBach
    @BessieBopOrBach 3 ปีที่แล้ว +12

    Your Toronto fans appreciate the Toronto representation, vwestlife! Fun fact: the proprietor of that radio station, Moses Znaimer, inspired the protagonist of the David Cronenberg movie Videodrome!

  • @ritmo1130
    @ritmo1130 3 ปีที่แล้ว +2

    Great job! This is the first time I watch your channel and really enjoyed it! AM radio is still great to listen.

  • @billpotter9716
    @billpotter9716 ปีที่แล้ว +3

    Nice to see the full-size variable capacitor. I am guessing they are kind of hard to mass-manufacture hence why most radios go with digital tuning.

  • @onebadrc
    @onebadrc 3 ปีที่แล้ว +1

    Mine arrived yesterday. Thanks for opening yours up.

  • @KevinAllOver
    @KevinAllOver 3 ปีที่แล้ว +11

    This video has the best soundtrack.

  • @Kylefassbinderful
    @Kylefassbinderful 3 ปีที่แล้ว +31

    LOL ok, I'll admit I thought the compartment could fit a power cord. Boy was I wrong lol

    • @OzRetrocomp
      @OzRetrocomp 3 ปีที่แล้ว +2

      It'd probably fit if it was an AC-only radio, so I don't blame anyone for putting forward the cord storage hypothesis.

  • @Broken_Yugo
    @Broken_Yugo 3 ปีที่แล้ว +13

    I bet this was redesigned at some point to use the chip solution, and that may not have been the first revision based on the case design. The 4.5 volt version probably was all discrete transistors.

    • @OzRetrocomp
      @OzRetrocomp 3 ปีที่แล้ว +3

      That was my first thought as well. Seems like somewhere along the line, 5 Core revised this radio to reduce power consumption. This is very thoughtful and important, given how many people in India have very little disposable income. I imagine many people probably had to save up for months to buy their radio, and probably couldn't afford to keep it running if it chewed through batteries.

    • @Broken_Yugo
      @Broken_Yugo 3 ปีที่แล้ว +2

      @@OzRetrocomp I'd guess the goal wasn't about power consumption, nor does higher voltage mean more power used. More about cost reduction, building a superhet FM broadcast receiver out of discretes the old fashioned way is labor intensive compared to the chip. As I understand it older battery powered transistor radio circuits used higher voltages to accommodate cheaper lower current transistors in the audio amp stage(P=IV and all). If they were really concerned about cheap operation a external power input would have been maintained.

    • @MrDuncl
      @MrDuncl 3 ปีที่แล้ว +1

      @@OzRetrocomp An odd number of batteries is always awkward as well. D cells are usually sold in pairs which means remembering where you put the spare one.

    • @mjouwbuis
      @mjouwbuis 3 ปีที่แล้ว

      or another chip.

    • @hagen-p
      @hagen-p 3 ปีที่แล้ว

      @@OzRetrocomp Looks like the chip runs on anything from 2V to 7.5V, so you could also power it with a single Li-Ion cell. Or with solar power. Nice design!

  • @synchro505
    @synchro505 3 ปีที่แล้ว

    What a great follow-up to an already great original video. VWestlife content at its finest.

  • @centermass3454
    @centermass3454 3 ปีที่แล้ว

    based on your recomendation I bought the 5 Core TC-22 and will be using it this weekend. Thanks.

  • @ruskreeder2434
    @ruskreeder2434 3 ปีที่แล้ว +3

    I purchased one from Amazon. It's truly an excellent radio that I love. Again, a fine review.

  • @corranda
    @corranda 3 ปีที่แล้ว +2

    Thanks for sharing this find! Just ordered mine today!

  • @Pdraver333
    @Pdraver333 3 ปีที่แล้ว +5

    Ordered one after I saw the first video. I got it yesterday, two days after I placed the order on eBay! Thanks for opening it up. I was thinking of doing that myself, now I don't have to. Even though it's a little crude, it seems to be a pretty good performer for the money.

  • @shango066
    @shango066 3 ปีที่แล้ว +10

    I just made a video on this today inspired by your first video.

    • @michaeljackson5938
      @michaeljackson5938 3 ปีที่แล้ว

      BIGGEST FAN OF SHANGO066 WHY NO EOL FOR 2021 😢😢😢

    • @mrnmrn1
      @mrnmrn1 3 ปีที่แล้ว +1

      @@michaeljackson5938 There was an EOL, although it was probably in late 2020, it went down very soon after he uploaded it, I should have downloaded it instantly.

  • @jimc9823
    @jimc9823 3 ปีที่แล้ว +2

    Picked up one of these and love it. Sounds very good for the price.

  • @netsparro1989
    @netsparro1989 2 ปีที่แล้ว

    Thank you so much for this awesome video , When the music started at the end , I was lost there for a moment , untill that click sound brought me to earth .

  • @jordanch68
    @jordanch68 3 ปีที่แล้ว +4

    I installed the SFU-455B (CF3) and I believe it did help the selectivity and stability on AM. The installed CF for FM at CF1 is ok as it is. The open spot for CF2 should be for the CDA 10.7 CF (CF3 on the CXA1619BS data sheet) but will involve cutting some traces and running a couple bodge wires. I have this CF but not installed it yet.
    The datasheet also indicates an antenna filter (part PFWE8) which I have not been able to find anywhere. Also I bought a few of these radios and one had a bad Yellow IF can with an open secondary, they cut the trace leading to the IC and jumpered both secondary pins back to the primary effectively eliminating that IF stage. I was able to find replacement IF cans and installed one of those (this IF can has no capacitor on primary or secondary). The rough alignment I did was to listen for the band of static on SW and adjust it so that the static falls within the range of the dial scale. These IF cans are getting hard to find now as well so it may be a good idea to get a few (red, black, white, yellow) when you can find them.
    I also followed the datasheet and added a tuning indicator LED (as shown int he data sheet (both resistors at 1K ohms these adjust the LED brightness and dimming speed) and installed it in the corner gap opening between the dial string right behind the red 5 Core logo on the T-291.

  • @frankgroening9139
    @frankgroening9139 3 ปีที่แล้ว +3

    nice radio! thanks to open and show us! Greetings from Argentina!

  • @thevacdude
    @thevacdude 3 ปีที่แล้ว +2

    Thanks for the video, Kevin.

  • @anirbanbiswas693
    @anirbanbiswas693 3 ปีที่แล้ว +6

    Great video bro! You know, I am from India, and I must say I have never heard about this brand before. I searched up on 5 Core radios and they simply are just not available on any online store here in India. Went on their official website, and though the radio is listed on there, the price is in USD rather than Indian Rupees - I guess the company has decided to market to a foreign audience, and maybe that makes sense since radios do not have a market anymore here in India, I don't see anyone buying a radioset in 2021 (except for nostalgia's sake). As far as AM-FM radios are concerned, one old Indian brand that comes to mind is Santosh - I think they still make radios, though I have no idea if they are analog units.

    • @geraldscott4302
      @geraldscott4302 ปีที่แล้ว

      I'm in the U.S. and haven't listened to local commercial radio (AM and FM) in decades. Nothing on but trash. I have a large collection of my favorite music, mostly from the '60s and '70s on cassette and 8 track tapes. I do still listen to shortwave, I have a dedicated late 1960s tube type SW radio.

    • @dilipdas5777
      @dilipdas5777 ปีที่แล้ว

      ​@@geraldscott4302 what's difference between tube type and modern IC based radios?

  • @tomsimpson3322
    @tomsimpson3322 3 ปีที่แล้ว +2

    Laughed out loud at the original speaker joke.....always good fun watching your videos. Keep up the good work, all the best from Scotland (-:

  • @DeLorean4
    @DeLorean4 2 ปีที่แล้ว +1

    They filled in the old DC-in ports but left all of the old incorrect text because adding material to the part involves machining the cavity which is fairly cheap, whereas removing the text requires welding the cavity and then re-machining it which is more expensive.

  • @rogerb5615
    @rogerb5615 2 ปีที่แล้ว +2

    I bought one based on this video. FM reception here n the boonies is excellent. After dark, if one's willing to put up with fiddly tuning and no bandspread, SW is also excellent. Recommended!

  • @wisteela
    @wisteela 3 ปีที่แล้ว +2

    Amazing. I may have to get one of these depending on what that will be like for here in the UK.

  • @johnruschmeyer5769
    @johnruschmeyer5769 3 ปีที่แล้ว +13

    Nice to see a radio with a honking long ferrite bar on the AM antenna. That probably goes a long way to explain why it receives as well as it does. I'm kind of curious as to whether it could be improved by changing the position of the coil on the bar and by tweaking the tuning capacitor.

    • @jordanch68
      @jordanch68 3 ปีที่แล้ว

      I noted in the first video that the screen print on the pcb has the coil on the other side. I flipped mine around and think that it helped slightly but that could be my imagination. It doesn't seem right to me that the coil is so close to the strong magnet of the speaker or that it's hanging out in space like that where it could be damaged, the ferrite antenna should be secured with some hot glue to keep it from coming out, it's only held in with wax and like you said it isn't a small bar.

  • @alextirrellRI
    @alextirrellRI 3 ปีที่แล้ว +6

    That's some of the best sounding AM I've heard in quite a while. My modern tuners in my hifi and car can't seem to pick up much of anything, or they mask weak signals.

  • @maltoNitho
    @maltoNitho 3 ปีที่แล้ว +5

    That ending tho, right in the feels somehow.

  • @ruskreeder2434
    @ruskreeder2434 3 ปีที่แล้ว +1

    Great job as always.

  • @maxpowers2168
    @maxpowers2168 3 ปีที่แล้ว +2

    Thanks for upload this video VWestlife 👍

  • @DerekPower
    @DerekPower 3 ปีที่แล้ว +1

    You really are the technical guru for the vapour scene 😁

  • @SlinkyStoney
    @SlinkyStoney 3 ปีที่แล้ว +5

    My last dumpster dive, I found a portable electric fan with AM/FM radio built-in and can do operate at AC or battery. It has the same Sony chip on it. Very sensitive receiver, it can pick up probably Chinese AM broadcast or some SE Asian am at night.

    • @fixman88
      @fixman88 3 ปีที่แล้ว +1

      That reminds me of the radio I found in a hidden garbage dump in the woods back in the 1980s; the tape player didn't work but the radio still did.

  • @tvradio1972
    @tvradio1972 3 ปีที่แล้ว +15

    So that's why this radio performed well. You can't go wrong with a radio made with Sony parts.

    • @mrnmrn1
      @mrnmrn1 3 ปีที่แล้ว

      Well, I'm not impressed at all by the sensitivity of my ICF-7600DA, and its design which uses two 74HC138 demuxes to *directly* switch between the SW RF filters. I think the series resistance and stray capacitances among its outputs might contribute to its mediocre performance on SW, but it's FM performance is not great either. It's quite alarming that they didn't even specify the sensitivity on any band in the manual.

    • @pradeepkumarpanda7626
      @pradeepkumarpanda7626 9 หลายเดือนก่อน

      Only the Chip and circuit is Sony, not other parts. Other parts are made in India by small manufacturers.

  • @randyc8171
    @randyc8171 3 ปีที่แล้ว +2

    I just received my T-22. Fabulous AM and FM reception. Tunes in AM stations my other radios only dream about.

  • @hagen-p
    @hagen-p 3 ปีที่แล้ว +1

    (a) On 5core.com (vintage audio section) you can see they call this radio TC-22 or T-291. Looks like they sell it worldwide.
    (b) The radio back shows mold parts for "4.5V" and for "AC 220V". Changing the design to use only two cells is a big improvement - batteries are often sold in packs of two or four. Inconvenient if a device needs three cells. The empty space in the battery compartment, and the unused space for an AC transformer shows that plastic case mold designs were often used for multiple product versions. E.g., one stationary verdsion with AC 220V, one with external low-voltage power jack, and one for battery-only operation. Quite common in the past. Molds are expensive to make.
    (c) Sony Corporation has a semiconductor barnch that produces and sells integrated circuits. That the radio chip is from Sony does not mean at all they produced the whole unit. Maybe 5core made or bought the design and just produces the radios. You can buy the CXA1619BS in bulk, if your want. Nice chip, by the looks of it. Works from 2V up to ca. 7.5V, so you could power it with 4.5V with out any harm for the chip.

  • @klafong1
    @klafong1 ปีที่แล้ว +1

    Look closely at the circuit board, and it becomes apparent that some components have been deleted as cost cutting measures. Two ceramic filters are missing (one has a jumper clearly visible). The good treble response on AM is a side-effect of this. However, Shango066 reviewed one of these radios, and he found that stations "bled" excessively. This specimen performs much better. Possibly, the engineers came up with a design revision that allowed the AM section to develop acceptable selectivity without using a ceramic filter.
    If I had to take an educated guess regarding the function of the five adjustable cores in the radio, it would be:
    -MW local oscillator
    -SW local oscillator
    -SW RF
    -MW IF
    -FM quadrature detector

  • @mikedw6748
    @mikedw6748 3 ปีที่แล้ว +3

    Thanks for the video and have a good day

  • @asanaya94
    @asanaya94 3 ปีที่แล้ว +2

    It surprising how many devices you can find Sony branded components in them. Great simple radio!!

  • @gabrieluruguay1
    @gabrieluruguay1 3 ปีที่แล้ว +1

    I Love old stuff like old radios or TV vintage, so cool for me . Nice vid, new sub😊

  • @chrisa2735-h3z
    @chrisa2735-h3z 3 ปีที่แล้ว +1

    Ooooh I love AM 740!! I listen to them all the time!

  • @lesrogers7310
    @lesrogers7310 3 ปีที่แล้ว +2

    The spring that forms the earth connection to the battery on the left seems very stretched. They are usually coiled much tighter, and sit much closer to the battery. This suggests to me that they did indeed plan for a further cell, especially as the space left over is too small for one.

  • @Frank_42
    @Frank_42 3 ปีที่แล้ว +16

    As it was said on Saturday Night Live, "You can put your weed in there!"

  • @workingtitle1791
    @workingtitle1791 3 ปีที่แล้ว +1

    Clever editing!

  • @grumpyken9151
    @grumpyken9151 3 ปีที่แล้ว

    that ferrite antenna is huge! that's why AM reception is so good

  • @skdevanytube
    @skdevanytube 3 ปีที่แล้ว +1

    Love your reviews

  • @dashcamandy2242
    @dashcamandy2242 3 ปีที่แล้ว +6

    2:11 - She comes down from Yellow Mountain... On a dark, flat land she rides... On a pony she named Wiiildfiiiiiiiiirrre...
    5:50 - Abbey Road, No Jacket Required, Best of The Doobies, Can't Slow Down... All outstanding albums.
    You definitely got me giggling right at the end. You clever bugger! :-)

  • @darrencoe5795
    @darrencoe5795 3 ปีที่แล้ว

    Thanks for the update video looking inside. Proper IF cores and ceramic filter and analogue IC, very 80's in a way.

  • @GeorgeGeorge-xj2bc
    @GeorgeGeorge-xj2bc 3 ปีที่แล้ว +1

    Who could imagine that.Few years ago it was impossible for me to find in my local shops to buy the special thread used for tuning to replace a broken one in a vintage hi-fi set.

  • @channelsixtysix066
    @channelsixtysix066 3 ปีที่แล้ว +1

    Shango's was broken in transit, floaties all in the cabinet. The pcb had broken allowing the antenna to flop around. His was the other model, T-291, with the tasteful extra nomenclature on the front. It did sort work, but the selectivity was abominable.

  • @grimreboot
    @grimreboot 3 ปีที่แล้ว +1

    Thank you for the video! :)

  • @rootbrian4815
    @rootbrian4815 2 ปีที่แล้ว

    Love the retro radio adverts. :)
    Awesome retro radio.

  • @jamesslick4790
    @jamesslick4790 3 ปีที่แล้ว +1

    I didn't know that ANYONE was making actual analog radios today. I'm going to have to get one! 👍😊👍

  • @0386rm
    @0386rm 3 ปีที่แล้ว +1

    Cool radio! I might have to consider getting one.

  • @brunohebert1351
    @brunohebert1351 3 ปีที่แล้ว +3

    It makes me want to dabble in AM radio a bit more... thanks for the follow up video an the nice Sony surprise indeed

  • @AMDRADEONRUBY
    @AMDRADEONRUBY 3 ปีที่แล้ว +2

    Nice a new video from my friend Kevin.

  • @adultlunchables
    @adultlunchables 3 ปีที่แล้ว

    Nice, Zoomer Radio! That's one of my favorite AM stations to pick up even though I'm hundreds and hundreds of miles away.

  • @iBendThings
    @iBendThings 3 ปีที่แล้ว +6

    I think you're looking for Zoomer radio, a Toronto station. They broadcast on FM 96.7 and AM 740. I was surprised you can receive a Toronto station from where you are.

    • @vwestlife
      @vwestlife  3 ปีที่แล้ว +1

      They come in very well via nighttime skywave (skip).

    • @OzRetrocomp
      @OzRetrocomp 3 ปีที่แล้ว +4

      I thought Zoomers only listened to Spotify lol

  • @TechBaffle
    @TechBaffle 3 ปีที่แล้ว +3

    They seem to sell 5 Core radios on the Walmart and Sears website too!
    Says on their eBay page that they've been around since 1984. Would be interesting to find out more about the company - can't find much about it.

  • @ajc5869
    @ajc5869 11 หลายเดือนก่อน +2

    i’ve owned my 5core T-291 for two weeks now and I really love it. It’s just such a piece of crap but so good at the same time. Yes it arrived with the ferrite bar broken off and loose in the case, I zip tied it in place and it made me love it even more. It just strikes that balance of quirky, cool and crappy so well. I like it so much that I ordered some rechargeable D batteries for it. I’ll keep this thing around for a while.

  • @ChintanPandya01
    @ChintanPandya01 3 ปีที่แล้ว +2

    You get what you pay for. That's quality where it's needed and not where it's manageable...this is to make the cheapest possible radio for the poorest with enough features, yet maintaining functional quality. That's called "Indian jugaad". A principal difficult to understand the concept of, for westerners but it works wonders in a pinch. But but...I do agree...the manufacturing quality, mostly in electronics, needs to be better for global standards.

  • @darramlogan7126
    @darramlogan7126 2 ปีที่แล้ว +1

    Sony is the company that introduced stereo sound and improved video quality to Bollywood films so I am not surprised.

  • @LakeNipissing
    @LakeNipissing 3 ปีที่แล้ว +5

    Incidentally the CF *ZM* 740 is from "Zoomer Media", owned by Moses Znaimer, who likes using 'MZ' (his initials) and 'ZM' (his company) in the station calls.

  • @cabasse_music
    @cabasse_music 3 ปีที่แล้ว +3

    "its good to know someone didn't sneak in here and replace it" - ya got me

  • @johnstone7697
    @johnstone7697 3 ปีที่แล้ว +5

    The Sony chip itself dates back to at least 1999, and I highly doubt this would be a current production item. DIP through hole chips are pretty much a thing of the past, having long given way to SMD types. And the physical construction of this radio really screams "last century". Probably enough surplus stock of the chip lying around to keep this model alive for a while. Performance certainly seems decent, but hardly state of the art for an AM radio. Where the technical performance of analog radios is concerned, I think we reached the peak in the early 1970's. Everything since then points to cost savings and simpler production. The cheap digital sets also appear to be pure junk, as evidenced by the fact that this crude set beats the snot out of the fancy "retro" Panasonic. My go to portable is a Grundig 6001 Satellit 210 from 1972. As analog portable radios go, it doesn't get much better than this.

  • @madprophetus
    @madprophetus 3 ปีที่แล้ว +1

    I'm surprised India (or anywhere outside the US) uses AM/FM on the same frequency bands that we do. Never really thought of it until I saw this video.

  • @michaelturner4457
    @michaelturner4457 3 ปีที่แล้ว +6

    Surprised to see Sony. Quite frankly I was expecting to see a Chinese AM/FM radio chiip in there.

    • @earth2k66
      @earth2k66 3 ปีที่แล้ว +1

      Just a few years back I used to own a cheap *Raju Radio.* And that contained the same chip. It even looked brand new. So I don't think they are salvaged from China either.

  • @LakeNipissing
    @LakeNipissing 3 ปีที่แล้ว +2

    Living in NE Ontario, I listen to CF Zee M 740 all the time. Great tunes, and their all-night jukebox is awesome. Although the new commercial free 1220 CFAJ from Niagara Falls has been winning me over, running an "anything goes" 40s, 50s, 60s, 70s, 80s, 90s playlist with Top 40 hits and unusual stuff like the Pink Panther theme, Neil Diamond - Love on the Rocks, Styx - Mr Roboto, Men at Work - Overkill, Moody Blues - Gemini Dream, Bee Gees - How Can You Mend a Broken Heart, Beach Boys - I Get Around, Prince - Purple Rain, Ambrosia - You're the only woman.

    • @fixman88
      @fixman88 3 ปีที่แล้ว

      That lineup reminds me of Uptown 1010 WMIN in Sauk Rapids, Minnesota. They call themselves 'Ring a Ding Radio', and play a lot of stuff from the Big Band era all the way up to the 90s...but no Rock or Disco. The play a lot of Swing stuff and The Rat Pack and Sinatra. Now if you want Album Rock there's WXYG 'The Goat' or WVAL 800 for Classic Country (they've been broadcasting since 1963!)
      ...and they're all owned by the same company and broadcast out of the same building.

    • @LakeNipissing
      @LakeNipissing 3 ปีที่แล้ว

      @@fixman88 Starting a week ago, CFAJ is still commercial-free 'test broadcast', and now with an online stream: 'Classic1220'

  • @probnotstech
    @probnotstech 3 ปีที่แล้ว +5

    CFRW! Winnipeg represent :D The last thing I need is to buy another radio, but man oh man am I ever tempted.

    • @LakeNipissing
      @LakeNipissing 3 ปีที่แล้ว +2

      I just posted above, I still have my 13 CFRW card, from when I was living north of Winnipeg in Selkirk.

    • @dougbrowning82
      @dougbrowning82 3 ปีที่แล้ว +1

      That was an old spot. It's been TSN 1290 for years. They might be in for another change, they lost the Jets to CJOB this year.