![Elektrickery by Dewald](/img/default-banner.jpg)
- 44
- 71 087
Elektrickery by Dewald
South Africa
เข้าร่วมเมื่อ 18 พ.ย. 2020
วีดีโอ
Marantz Model Sixteen Stereo Power Amplifier
มุมมอง 4447 หลายเดือนก่อน
In this video I do a quick look at the wonderful Marantz Model Sixteen Stereo Power Amplifier! #marantz #amplifier #stereo #stereoamplifier #audiophile #audio #hifi #music #madeinusa #americanmade #transistor #transistoramplifier
Luxman MQ70 vacuum tube amplifier
มุมมอง 9867 หลายเดือนก่อน
Having a look around the bottom of the Luxman MQ70 tube amplifier. #amplifier #stereo #stereoamplifier #hifi #luxman #madeinjapan #valveamplifier #tubeamplifier
Studer A80
มุมมอง 534ปีที่แล้ว
What do we have here? Watch and learn. #studera80 #openreel #reeltoreel #taperecorder #tape
Thorens TD160 with an Audio Technica AT3600L
มุมมอง 762ปีที่แล้ว
As per the title. The little AT3600L does a good job at tracking the canon shots on the infamous Telarc DG-10041 1812 Overture record. #audiophile #vinylrecord #telarc #audiotechnica #thorens
Quested D1500 Power Amplifier
มุมมอง 281ปีที่แล้ว
On the bench is a peculiar power amplifier from yesteryear. It is a Quested D1500 Power Amplifier but it was originally known as a Chamelion and Dynaudio also used to sell these with their branding. #quested #dynaudio #amplifier #analogue #stereo #technician #audioengineer #electronics #electronic
Revox A77
มุมมอง 2.1Kปีที่แล้ว
A quick look at a Revox A77 #stereo #analogue #openreel #taperecorder #revox #studer #hifi
A stack of NAD Amplifiers! With focus on the 3020B Integrated Amplifier
มุมมอง 2.9Kปีที่แล้ว
I decided to make a video about the NAD 3020B stereo integrated amplifier. It was measured on the Audio Precision analyser and the results are very interesting. #nadaudio #amplifier #audiophile #analogue @NADElectronics #3020B #stereointegratedamplifier #stereoamplifier #technician #technology #hifi #music
Pioneer SA-9800 Stereo Amplifier
มุมมอง 3.7Kปีที่แล้ว
This is my third attempt at making a video about the Pioneer SA-9800 #stereo #amplifier Happy listening!
The Pioneer SPEC-2 Power Amplifier overview.
มุมมอง 2.1Kปีที่แล้ว
This is a look at the Pioneer SPEC-2 Power Amplifier. #amplifier #hifi #highend #audiophile #vintageaudio #poweramplifier #stereo #pioneerelectronics #madeinjapan
Pioneer SPEC-2 Power Amplifier on the bench!
มุมมอง 2.3Kปีที่แล้ว
On the bench is a Pioneer SPEC-2 Power Amplifier. This is a beast. Check out the channel www.youtube.com/@UChTN8got77QeKPFRmTJ0teg #amplifier #pioneer #audiophile #highend #analogue #music #hifi #pioneerelectronics
Audio Research D115 amplifier capacitor revision
มุมมอง 739ปีที่แล้ว
This beautiful Audio Research D115 amplifier came in for an electrolytic capacitor revision. #amplifier #highend #audioresearch #hifi #audiophile
Rubber Belt Snot
มุมมอง 53ปีที่แล้ว
This is what happens if audio equipment is not used for a long time. Rubber belts turn to snot. #vinyl #analogue #hifi #turntable #vinylrecord #vinylcommunity
Capacitors - again! Krell KSA100S Amplifier
มุมมอง 5Kปีที่แล้ว
This is a fine example of how troublesome helter-skelter capacitor replacement jobs can be. #krell #hifi #music #audiophile #amplifier #highend
Garrard 4HF turntable playing
มุมมอง 6122 ปีที่แล้ว
This lovely Garrard 4HF turntable was rewired with Mogami Cable and fitted with a new Shure cartridge. #turntable #vinyl #vinylcommunity #garrard #mogami #hifi #analogue #vinylrecord #shure
When one goes the other follows - Luxman CL-32 tube preamplifier
มุมมอง 3.2K2 ปีที่แล้ว
When one goes the other follows - Luxman CL-32 tube preamplifier
Total Harmonic Distortion sweep of a Yamaha M4 power amplifier
มุมมอง 5542 ปีที่แล้ว
Total Harmonic Distortion sweep of a Yamaha M4 power amplifier
Pioneer SA-708 amplifier - its wonderful specifications and timeless features
มุมมอง 14K2 ปีที่แล้ว
Pioneer SA-708 amplifier - its wonderful specifications and timeless features
The resurrection of the Revox A740 stereo power amplifier
มุมมอง 4.1K2 ปีที่แล้ว
The resurrection of the Revox A740 stereo power amplifier
Gunter Steinharts' take on the RCA Lin circuit (aka Naim NAP)
มุมมอง 5442 ปีที่แล้ว
Gunter Steinharts' take on the RCA Lin circuit (aka Naim NAP)
Musical Fidelity P180A Amplifier - Part 3
มุมมอง 2.1K2 ปีที่แล้ว
Musical Fidelity P180A Amplifier - Part 3
Musical Fidelity P180A Amplifier - Part 2
มุมมอง 5K2 ปีที่แล้ว
Musical Fidelity P180A Amplifier - Part 2
Musical Fidelity P180A Amplifier - Part 1
มุมมอง 1.3K2 ปีที่แล้ว
Musical Fidelity P180A Amplifier - Part 1
Acidic adhesive that kills vintage equipment - Hitachi HA-4700
มุมมอง 7903 ปีที่แล้ว
Acidic adhesive that kills vintage equipment - Hitachi HA-4700
Che differenza passa tra piooner sa706 e sa 708 ?
They are stunning amps. I have had mine from new. Just love the Pioneer kit of the 80's
Great amp! I prefer the sa606 though
Price
Hi! Nice cleaning method, I will do it with some other boards, if the transformer is far away! I have a Naim 32.5 and Nap 180, modded following the instructions of the pfm forum, and I am very very pleased, the upgrades are massive, but... I'd like to have some more control for my Mark & Daniel Maximus Ruby speakers. 82db. These speakers will stay, I love them. The sound of the Naims are very fluid and soooo musical, hights, lows, everything is satisfatory. I thought that the Musical Fidelity P180 could solve my problem of "more drive" without a loss in quality. anotherv thing : I wonder if you changed the electrolytics of your integrated, other than changing some resistors for the (I think), Vishay, RN type. Anyway, I can use the P180 with my "upgraded" Naim 32.5 if it sounds good, or just use the Musical Fidelity with my Brooklyn dac, using the dac as a preamp. Your integrated only has a vol controil, not a real preamp, so it will work well without the Naim. I only want a litle bit more control, the NAP180 has some, but I'd like to feel that he has some more than needed. Do you think that this is a good solution ? Does it make sense to you? Thank you very much for the videos ! Francisco
Great video. How do you get the amp so clean?
Hi there. Have a look at my other videos where I show how I wash the amplifiers.
Would love to see more from you again. You have done some really interesting amp repairs so far!
Un amplificador excelente yo lo tengo y es sencillamente espectacular,lo recomiendo
Hey man what detergent did u use to clean up the Amp?
the sweeps on the 3020.... mine doesn't do that. I would have a suspicion that someone has swapped out some caps in the audio path &- possibly thinking it was a good idea, based on how one might install bigger filter caps in a PSU, replaced them with larger values, when that hump at 125Hz had been designed out.... just an idea. could also be caps going bad.... but the symmettry of it....🤔
The best is to take the corresponding schematic and check out each component, especially each capacitor and then replace what's needed.
Sweet looking amp and I own one so know how good they sound. BTW, nice trick with the meter lamps. I sourced standard incandescent replacements and was trying to figure out how to get that nice warm green glow.
Wonderful review! Imagine my delight tonight watching this video after picking up a fully functioning set of the following for $80 not knowing if they were completely worth it: Pioneer tuner TX 608 Amplifier SA-708 Dynamic Processor RG-2 Reverberation Processor SR-303 Graphic Equalizer SG-9800 Tape Deck F-650
lovely and informative! great bit of vintage HIFI history. looking forward to more.
So i have the exact same amp on my bench , there are absolutely no instructions online on how to bias this thing. The schematic shows 2x10w resistors when in fact there are none. Can you shed some light? I read a diyaudio thread talking about biasing this thing for 50ma across the 10 ohm resistors that simply from my view unless i'm blind aren't there.Any help is appreciated.
Hi - the one method is to measure the current draw on the mains power line to the amplifier. What I have done was to measure the crossover distortion level and biased the tubes as low as possible without any noticeable distortion. The negative bias network was designed to a T to fit EL34s exactly. So any EL34s thats out of spec or whack will give you endless troubles.
@@elektrickerybydee any other way using a multimeter and voltages ? Thx
@@cpgixxer the other option would be to install a 1 ohm resistor on each cathode or each EL34 tube. Then measure the voltage across each resistor. It must be 50mV. For 50mA idle current per tube.
@elektrickerybydee 1 ohm and not a 10 ohm as suggested by the schematic? That's what I don't understand, schematic shows a 10 but it's nowhere to be found.
@@cpgixxer use a 1 ohm. It causes a much smaller voltage drop. It's only for referencing current draw.
I have one of these that I picked up cheap at a garage type sale about 10 years ago. ($20 US) It was not working so started with those wire-wrapped terminals... and presto... PERFECT! Still working VERY well today. The Spec-1 preamp was not so lucky. Still not working but looks great on the shelf. (another $20) That one powers up but no signal passing through on either channel.
Another nice piece of gear on your desk! Thanks
Thank you very much!
Great vid, lots of informative information.
Thanks Dewald, I am a huge Luxman fan, great stuff.
Lovely amplifier and great to hear your thoughts on it! I know Tim Paravicini was lead designer for Luxman's MB3045 monoblocks and I have an A3600 Luxkit (MQ3600 Luxman), which was a cut-down stereo version. Both used the exotic 8045G triodes (pins 3 and 4 internally wired together) and 6240G driver/phase inverter tubes in a LTP.
what a shite job.
Hair drier
I am planning on getting a solid entertainment table because I would like stack it with amplifiers such as this ones. NO television
Please add a voice over to this video, your content seems to be very informative. Keep it up. 👍🏼👏🏼
Excellent video with clear and concise explanations. A lovely preamp to boot👍🏼
Hi i got the same one...still working good after 40y...luv the pioneer quality!! ;o) grtz from belgium!
Hitano is sucks
Hey Mr Dewald, I have a Revox a740 and a b740 and really want the lights on both vu meters replaced and also on my b740 the right side vu meter isn’t working.
I just bought an M-77. I'm glad I watched your vid I learned quite a bit. Thanks
it's a mk2. left hand guide is fixed on a mk1, & also the port where the VU meters poke through the front panel is undivided, where the mk2 & later have that narrow post between them. there's other stuff to do with the finish on the fold-down tape cover & internally...
those RIFAs, though- you never forget the smell!
My right meter isnt working advice please? I have an M-77. Thank you
There are a couple of tantalum capacitors on the meter board that could be faulty but in general, at that amplifiers age, you need to have the capacitors replaced - all the tantalum and electrolytics.
Hello, could I ask what kind of led you have installed in the VU meters ? I think the voltage is 63 volts or so in the bulbs and I would like to replace the original filaments with led . Thank you very much for that and for the good video. Cheers, jack from France
I enjoy watching your videos. Thank you for sharing.
Are there any major differences between this model and the SA 608 model other than lower power (45w)?
The best is to compare the two circuits but I know Pioneer never scaled their circuits. Each model had it's own circuit.
Hi, nice video! I was looking for something like this. One question, maybe stupid, but I don't know much about electronics.. After unplugging, how long should you wait for the electrolytes to discharge?
With these amplifiers it is less than 25 minutes. The capacitors drain quite quickly.
Oh the smell when they go off... These smoke bombs are in everything a couple of decades old over here, and also inside Schaffner filtered IEC mains inlets. The mains inlets were quite popular worldwide. Greetings from Sweden :)
I believe those output transistors are actually from the Japanese Fuji Electric. I wonder if the MT200 Sanken transistors like 2SC3264 would fit. Still obsolete, but much more recently.
I have the Pioneer Spec. 1 & Spec 2, and the sound from the left channel is way softer than the right channel. What do you think the problem maybe? It used to work after a few minuets but has gradually gotten worse. All connections are fine.
That is tell-tail capacitors busy dying!
Sería factible conseguir el folleto instructivo y el plano del modrl SA-708, gracias
Please look on Hi-Fi Engine - www.hifiengine.com/manual-library.shtml
Does this amp sound better than the new line of Pioneer like A 616 and 717. because I like vintage amps and receivers and I'm thinking to change my A 717 for one of those.
I dont know if it sounds better but it does sound very good!
@@elektrickerybydee Thanks for the reply!
excellent work dude. HiFi jewellery at its best. you really show your love for these beautiful pieces. For me they are like the good handmade wristwatches, say Patek Philippe or Vacheron Constantin, truly art pieces which are made to be enjoyed by generations.
I appreciate that!
hi devalid! i got one,p180a from my dad,but its lost the extrrnal psu,can you menton the spec of the psu like how many voltage /current a .etc ?its old machine,not much information kn the web. just want to bring the lovely baby back to live,again!thanks.
The transformer need to be 48 - 0 - 48 VAC secondary with a capacity of at least 400VA.
Hola, muy bueno tu video. Tengo un SA-510 desde 1980 y suena maravillosamente bien. Ahora adquirí un SA-708. Estoy enamorado de él y de la linea azul de Pioneer. Que parlantes me recomendas para el 708?. Saludos desde Argentina
Buen día. Gracias por sus amables cumplidos. Estos amplificadores son realmente muy buenos y están bien diseñados. Cualquier buen altavoz moderno es el mejor para conectar al 708. Como los modelos de B&W y JBL. ¡Disfruta la música!
@@elektrickerybydee muchas gracias y sigue con tus buenos videos. Saludos
What’s the details on the bulbs ?
The "bulbs" are a stock item from the RS Comp / Allied Electronics catalogue.
This video is very interesting, unfortunately therre is no audio. Is it possible to fix the problem? Thank you very much
Thank you. I am aware that there is no audio on this video. I will have to do a voice-over but can only do so when I have a moment in my busy schedule. Kind regards.
Amazing vid, just got one of these from my granddad. Im just getting into vinyls and needed an amplifier. Is this one a good start?
Hi! Yes it is a very good amplifier in any standard. It will be a good amplifier for life. Get it serviced.
@@elektrickerybydee thanks alot for the answer
Savez pourquoi les faisceaux bleus de cette série on tendance a être désynchronisés visuellement ( droite et gauche ) en cours d'écoute ?
Les circuits de comparaison sont un peu primitifs et donc la réponse pourrait être compromise. Si votre appareil est très déséquilibré, les potentiomètres ne sont peut-être pas réglés correctement. De plus, l'âge des condensateurs est un gros problème. Je remplace tous les condensateurs d'un coup.
@@elektrickerybydee merci de m'avoir répondu , sur mon sa710 oui il y a un déséquilibre de faisceaux pas non plus éxhorbitant mais assez génant tout de même notamment sur les sons ambiants
@@elektrickerybydee donc cela viendrait il des potentiomètres , impossible en tout cas de régler le soucis en jouant avec la balance , j'ai fait révisé l'"appareil dernièrement le gars m'a certifié qu'il ne pouvait rien faire a ce niveau , et ce qui m'inquiète c'est que j'ai vu d'autres appareils identiques sur you tube avec le même souci visuel , j'aurais besoin de votre opinion , merci d'avance 😉
@@boyerjuliano21 Les condensateurs ont-ils été remplacés ?
What a beauty!
I agree!
How good do you think this amp compare to say Kenwood m1?
Thats a good question but it can only be answered if the two is directly compared.
Very good looking , amplifier and very good information ke liye thanks by , kirpal Singh , village humayoun pura , distic Ludhiana , Punjab , India ,. Next video ,,,,,,,,,,,,,,,
Always welcome
I love my late 80s "Monitor Series 2600" amp. The cats do too and enjoy it as a heated sleeping platform. I'm sure it is capable of putting out enough watts to blow my eardrums, but alas I live in a condo and can't test that. NADs are great amps for not a lot of money. Thanks for your tests.
I have a polaroid from the late 80s of my cat asleep on my 3020. I still have the 3020, but no longer have to take the lid off to hoover it every six weeks.... 😞