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'36 Gibson EH-150 | Part 1: Amp History on the Bench

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  • เผยแพร่เมื่อ 15 ส.ค. 2024
  • Talk about your rare amps - it doesn't get much rarer or cooler than this. This model of amplifier helped give birth to the electric guitar as we know it. Let's take a peek under the hood and maybe even give it a listen.
    -------------------------
    These are things I get asked about a lot :
    Amp Tech Gear Used :
    Hakko FX-951 soldering station
    Weller SPG 80L soldering iron (chassis work)
    Rigol DS1054Z digital oscilloscope
    Thsinde 18B+ digital multimeters
    Kester 60/40 solder
    Techspray #4 No-Clean Desoldering Braid
    Below are things that make this channel possible that people don’t usually think about. If any of these companies want to send me new and wonderful toys, I’m open to that. I can’t take free stuff when it comes to the amps I review, etc, but for the stuff below, bribe away!
    Microphones/Audio Equipment :
    Guitar Amps : Royer R-10 Hot Rod and/or Shure SM57 (noted in videos)
    Voiceover Bench : sE Audio sE8 (small diaphragm condenser)
    Voiceover Streaming : Shure SM57 with shockmount and windscreen
    Voiceover Mic Arms : Elgato Wave Mic arms
    Guitar Mic Stand : Gator Frameworks short weighted base stand with boom
    Mic Cables and Guitar Cables : Mogami/Neutrik
    Mic pre : MOTU M2
    DAW : Logic Pro X on MacBook Pro 16 running Sonoma 14.0
    Plugins : No effects other than level matching/normalization unless a recording
    specifically has reverb etc added in post (rare, various Waves plugins)
    Monitors : Yamaha HS7s
    Monitor Stands : Gator Frameworks Desktop Clamp-On Stands
    Monitor Isolation Mounts : IsoAcoustics Iso-Puck Minis
    Headphones : Beyerdynamic DT 770 Pro (main)
    Headphones : Sony MDR-7506 (alternate)
    Video Equipment :
    Camera : Sony ZVE-10 with SmallRig Cage (main)
    Lens : Sigma f2.8 18-50mm (main)
    Lens : Sony ZVE10 kit lens (rarely used)
    B Camera : Apple iPhone 13 Pro (rarely used)
    Tripod : SmallRig 71” with SmallRig Fluid Video Head
    Streaming Mount : Elgato Master Mount S with SmallRig Ballhead
    Bench Light : SmallRig RC 120D
    Bench Light Diffusor : SmallRig Lantern Softbox
    Bench C-Stands (light and overhead camera) : Neewer Pro SS Heavy Duty
    Streaming Light : SmallRig RC 120B
    Streaming Diffusor : SmallRig Parabolic Softbox
    Streaming Light Mount : SmallRig 148CM Wall Mount Boom with Triangle Base
    Various Other Lights : Neewer LED Panels with Neewer Softboxes
    Video Software :
    Davinci Resolve 18.6
    Paul Leeming LUTs
    Adobe Illustrator 28.0
    Adobe Photoshop 25.0
    Ecamm Live (streaming software)

ความคิดเห็น • 73

  • @JAugust
    @JAugust 8 หลายเดือนก่อน +10

    Back in the summer of 1997 I did an internship in the museum collection of the Wisconsin Historical Society in Madison, WI. I found one of these amps and a matching Gibson lap steel in the collection one day while doing inventory. Being a curious guitarist I had to plug it in and try it. It powered up and made a horrible loud buzzing sound and passed no guitar signal. Quickly turned it off, put it back where I found it and went about my business. 😂

    • @richardlynch5632
      @richardlynch5632 8 หลายเดือนก่อน +2

      Also in Wisconsin, had a BR9 Amp with matching lap steel.
      Fun kit indeed 😎👍

  • @coldacre
    @coldacre 8 หลายเดือนก่อน +7

    good golly, what a piece of history! that suitcase rear is a great idea, no messing with screws.

    • @jsphillip60
      @jsphillip60 7 หลายเดือนก่อน

      Absolutely!

  • @BradsGuitarGarage
    @BradsGuitarGarage 8 หลายเดือนก่อน +2

    It's so gruntling that this unit is still in service!

  • @mnemonik61
    @mnemonik61 8 หลายเดือนก่อน +10

    Wow, that amp is in amazing condition for its age! Looks like somebody's been taking good care of it.

  • @Joe-mz6dc
    @Joe-mz6dc 8 หลายเดือนก่อน +1

    Wow same year as the 1936 summer Olympics in berlin. That is definitely some kind of old amplifier.

  • @Mr_Gray_Sky
    @Mr_Gray_Sky 7 หลายเดือนก่อน +1

    That microphone channel had some beautiful sounding distortion. From a pre war amp. So cool!

  • @danielmargolis3210
    @danielmargolis3210 8 หลายเดือนก่อน +4

    To hear a current guitarist in the Charlie Christian style using one of these check out Jonathan Stout, an amazing player.

  • @michaelfuller34
    @michaelfuller34 8 หลายเดือนก่อน +3

    I went to see Tommy Emmanuel in Anaheim, CA a year ago, John Jorgensen opened for him with a Jazz lineup. Because it was local gig (for John) he brought his Charlie Christian setup including an amp that looked very much like that one as well as an es1?? With CC pickup. So cool to see the insides! Thanks!

  • @gcustis
    @gcustis 8 หลายเดือนก่อน +1

    I have one of these, 1936 EH-150 and it’s all original. It’s a very cool little amp, the mic channel rocks. It is a boxy sounding amp, small 10’ speaker and closed back cab. But it is a very usable amp. My speaker is an Admiral, I think my grand parents had an Admiral refrigerator. I also have an EH-185, rebuilt, another sleeper/secret/weapon.

  • @Robstafarian
    @Robstafarian 8 หลายเดือนก่อน +1

    The cranked microphone channel was a pleasant surprise. I would love to spend some time with that.

  • @alexwoolridge94aw
    @alexwoolridge94aw 8 หลายเดือนก่อน +1

    Very cool. Amazing its even still around and in tbis condition. Made during Martins golden era. Dont even think about amplifiers being around pre war Martins.

  • @DSteinman
    @DSteinman 7 หลายเดือนก่อน

    The Supro Delta King amps are styled after this! Stripes and all. I love mine, great sounding amp.

  • @martinreid1740
    @martinreid1740 8 หลายเดือนก่อน +2

    A really nice old amp and I reckon that suitcase cabinet kept it really clean inside.

  • @sgt.grinch3299
    @sgt.grinch3299 8 หลายเดือนก่อน +2

    Wow that is a beautiful piece of History.

  • @milofh550
    @milofh550 8 หลายเดือนก่อน +6

    Fantastic vid Lyle, always thankful for your wisdom and care in practice.

  • @jerryking2418
    @jerryking2418 8 หลายเดือนก่อน +1

    Agreed, for its age this amp is in great condition.

  • @thatampguy
    @thatampguy 8 หลายเดือนก่อน +2

    Was fortunate enough to work on one this year. Wires break if you squint at them 😂. ST tubes so close they touch. But a real screamer with a PAF at the bridge. Great video!

  • @matthewf1979
    @matthewf1979 8 หลายเดือนก่อน +1

    I just get excited when I see BED resistors in stuff! It’s interesting to see how things were built back then.

  • @Henni63
    @Henni63 8 หลายเดือนก่อน +2

    What an absolute gem of an amp!

  • @chipsterb4946
    @chipsterb4946 8 หลายเดือนก่อน +2

    Thank you for sharing this wonderful piece of history with us.

  • @kennethquintini658
    @kennethquintini658 8 หลายเดือนก่อน +1

    Thanks for sharing this gem 💎, happy holidays ☮️

  • @victorbeebe8372
    @victorbeebe8372 8 หลายเดือนก่อน +1

    Aloha Lyle! Another very interesting and historical amp. Looking forward to more. Mahalo

  • @kevinfarrellUK
    @kevinfarrellUK 8 หลายเดือนก่อน +1

    I couldn't help myself, I looked up what these things are fetching. WOW! I wonder is its worth as a piece of history more than for the actual sound, am guessing so. Having said that, if money was not a problem, would I want one? Hell yeah. ;))

  • @RobbieF
    @RobbieF 8 หลายเดือนก่อน +1

    I really like the "Suitcase" like cabinet.

  • @MattXScott
    @MattXScott 8 หลายเดือนก่อน +1

    Wow! I've never seen one of these before. Thanks for sharing!

  • @andrewwebb1911
    @andrewwebb1911 8 หลายเดือนก่อน

    Thanks Lyle!

  • @RozsaAmplificationLLC
    @RozsaAmplificationLLC 8 หลายเดือนก่อน

    LOVE the old amps. Looking forward to the next video and giving it the once over.
    Yeah, HATE the old caps like that 10nF. Had a bunch of them from old tv and radio shops. They are junk and ended up throwing them all away. If they didn't outright drift 50-100% out of tolerance, they dry up and short!! I know some people want to original and original components, but really you don't! The caps and resistors are not to the quality they are now-a-day. The iron on the other hand...that stuff must have followed Bosch's cliche and "built for life" because they last forever!!

  • @philryski9808
    @philryski9808 8 หลายเดือนก่อน

    Early electric guitar pickups used huge magnets and massive coils because amp technology was so primitive.Rickenbacker used a giant horse shoe magnet that surrounded the strings..The first Charlie Christian pickups had large bar magnets bolted to the inside of the guitar that must have weighed 2 or 3 pounds and really put out.Possibly the low gain instrument channel is correct and impedance matched.

    • @PsionicAudio
      @PsionicAudio  8 หลายเดือนก่อน

      It’s not, but spoilers.

  • @richardlynch5632
    @richardlynch5632 8 หลายเดือนก่อน

    Great condition. Wonder if there's a Harley knucklehead under a tarp in this persons barn...?😎✌👍❤🖖

  • @Satchmoeddie
    @Satchmoeddie 8 หลายเดือนก่อน

    An old Electric Hawaiian amp. If those EH amps were kept closed up when not in use and weren't water damaged, they tend to stay really really clean inside that suitcase cab. I had an EH150 set come in a few years back. An EH150 lap steel and the complimenting EH 150 amplifier set. 6F5 pentode in from the mic jack? These did have a field coil and a choke, which is rather odd, as the filed coil kind of becomes a de facto choke.

  • @tomoshea5683
    @tomoshea5683 8 หลายเดือนก่อน

    So many 1920s and 30s amps had multiple transformers. I keep thinking it must have been easier to make a very accurate transformer than a very accurate cap, and certainly good caps were MUCH more expensive to make back then than they are today.

    • @goodun2974
      @goodun2974 8 หลายเดือนก่อน

      I haven't watched the whole video yet but I'll take a guess that one of the Transformers is an interstage transformer that functions as a phase inverter between the driver tube and the output tubes. This was a very common design in radios and amplifiers of the 1930s and early 40s'. A transformer used as a phase inverter has the advantage of never drifting in the way that a tube and capacitor phase inverter circuit might, and never leaking DC to the grids of the output tubes to cause the bias to go haywire.

  • @vayabroder729
    @vayabroder729 8 หลายเดือนก่อน

    Nice! I have a ‘38 which has round top corners.

  • @elbowjames7625
    @elbowjames7625 8 หลายเดือนก่อน

    I can just smell that old amp! They have a certain aroma to them...

  • @Splattle101
    @Splattle101 8 หลายเดือนก่อน

    Oooh, transformer phase inverter! Now there's a thing you don't see very often these days.

    • @halvach1998
      @halvach1998 8 หลายเดือนก่อน

      Interestingly, I have a 70s solid state Aussie made 'Audio Telex' PA amp which uses interstage transformers! (& an output TX for 100v distribution). All that iron makes it heavy though.

  • @Jah_Rastafari_ORIG
    @Jah_Rastafari_ORIG 8 หลายเดือนก่อน

    Sure; back when the company was known as "Sibson"... I remember!

  • @rodneyseiwald5135
    @rodneyseiwald5135 7 หลายเดือนก่อน

    Oh yeah, the focus........

  • @joeltunnah
    @joeltunnah 7 หลายเดือนก่อน

    I like the ones with the rounded shoulders better.

  • @mattjohnson6916
    @mattjohnson6916 8 หลายเดือนก่อน

    Very cool to see such a piece of history like that, and how often do you see any electrical or mechanic device predating World War II still in operation?
    Also, that thing has so many transformers in it there should be a logo on the front saying 'More than meets the eye'.

  • @paulsto6516
    @paulsto6516 8 หลายเดือนก่อน

    She's a beauty!

  • @nolarocks
    @nolarocks 8 หลายเดือนก่อน

    Very enjoyable

  • @johnwilliamson467
    @johnwilliamson467 8 หลายเดือนก่อน

    The metal can 6n7 may be the better choose over the glass 6n7gt . Not totally sure without testing both in that amp . A bit of a different sound to each in this application testing both is the only way to know for sure.

  • @joemcgraw5529
    @joemcgraw5529 8 หลายเดือนก่อน

    I have a Gibson BR9 amp all original and needs help I played a few chords and stopped playing it because at the time I didnt have a variac or current limiter,it was made in 1948 and very basic this amp being 12 years younger is well worth being serviced ,I will service mine when I have the time but they do have great tones ,Its a wonder why Gibson didnt try to follow thier only Electric competitor in those days but Leo got it right almost immediately so theres that

    • @PsionicAudio
      @PsionicAudio  8 หลายเดือนก่อน +1

      Restored '46 Gibson BR-4
      th-cam.com/video/QS-fzD3NBHw/w-d-xo.html

    • @joemcgraw5529
      @joemcgraw5529 8 หลายเดือนก่อน

      @@PsionicAudio thanks Lyle its a real treat for me to see you craft and enjoy watching you do your magic

  • @FaintSignals
    @FaintSignals 8 หลายเดือนก่อน +1

    I remember a couple years ago studying the schematic of the 6N6 version with the interstage transformer and for some reason wondering if this amp runs in class B, actually above my pay grade so I never figured it out, any idea? I also briefly entertained the idea of building one with equivalent or close enough novals just for poops and giggles, looking back at my notes I figured it would work out pretty nifty with 2 tubes: 12DW7 and 6CG7. The 12AX7 half of the 12DW7 for the 6F5, 6CG7 for the 6N7 twin triode, and the 12AU7 side of the 12DW7 for the 6C5/6J5, 2X 5881 for the output with a smallish non-interleaved OT, something like the 5K Hammond 1750S, modernized power supply with a 5V4 or 5U4, 500-1K dropping resistor for proper sag instead of field coil choke, and upping the filtering but not too much, 16-16-8-8, the voltages and operating point of the 5881s would need to be figured out. No idea about the proper interstage, also above my pay grade, but AES has P-T156 and Mercury offers a pricier repo. The tone if IIRC was done through a cap and a toggle switch, a rotary switch with several caps could be used for more choice. If anyone wants to go with it I pass the baton.

    • @Robstafarian
      @Robstafarian 8 หลายเดือนก่อน

      That sounds cool; do you figure cathode-biased Class AB for the 5881s, to put out something like 25 or 30 watts? A cathode-biased, single-ended 5881 could also be cool, but a pair in parallel Class A is also interesting.

    • @FaintSignals
      @FaintSignals 8 หลายเดือนก่อน

      My intent was to duplicate the original as much as possible avoiding octal pre's which except maybe hifi are nothing special and are mostly microphonic leftovers these days, but they were always too microphonic for guitar amps due to the large internal structures, same for ST power tubes, been there done that, just not worth the effort in a new build. It would be nice to have a voltage map and knowing the correct impedance of the OT to try and figure out the operating point for 5881, preamp tube operating points too. There's not much on the forums. Maybe our host could provide.

  • @aurora3655
    @aurora3655 8 หลายเดือนก่อน

    That sounds amazing

    • @PsionicAudio
      @PsionicAudio  8 หลายเดือนก่อน

      Not yet it doesn’t…

    • @aurora3655
      @aurora3655 8 หลายเดือนก่อน

      @@PsionicAudio no…it has an amazing sound as is!

  • @schmolly75
    @schmolly75 8 หลายเดือนก่อน

    Hello, you mention to have a scope in your stuffs but I wonder why you don't use it to check the circuit. When I have to fix an old amp I always used to replace the speaker by a Hi-power resistor, and after a check of the voltages (anodes cathodes) I put a LF generator in the input and look with a scope at the signal after each stage till the "speaker".

    • @PsionicAudio
      @PsionicAudio  8 หลายเดือนก่อน

      I do when necessary. Isn’t always necessary.

  • @unclemeat8422
    @unclemeat8422 8 หลายเดือนก่อน

    Always wondered what those amps sounded like.
    Lyle or anyone heard or played Vintage Sound amps? Got one for sale my way Vintage 22sc. AB763 circuit in Princton size combo. WGS G12C/S Price is low…

  • @randysteffes97
    @randysteffes97 8 หลายเดือนก่อน

    😊

  • @boctok55
    @boctok55 8 หลายเดือนก่อน

    I thought the Neutrik Silent plug should only be plugged into the guitar. Is there something about the wiring of some amps that makes this a non-issue?

    • @PsionicAudio
      @PsionicAudio  8 หลายเดือนก่อน

      It’s a non-issue on any good quality jack. My cable here has silent plugs at each end, one straight, one right angle.

  • @larrychung3190
    @larrychung3190 8 หลายเดือนก่อน

    The two additional transformers are a small filter choke (in addition to the field coil) and an interstage phase inverter transformer. Glad to hear that the amp's working well, too. Good original iron always a plus. The work inside looks pretty good imho, fwiw, the speaker cone looks like a replacement. Thanks for sharing this old beauty. Was any cabinet work done to make the glass 6N6 tubes fit? Most of these I've seen use the smaller version (metal) 6N6 as they're just barely able to fit. Looking forward to more details, nice way to start the week! (:

    • @PsionicAudio
      @PsionicAudio  8 หลายเดือนก่อน +1

      I agree with you so much I said the same things in the video. ;)
      Cab seems all original but I’ll double check re: tube clearance. I haven’t checked to see if the speaker is original to the amp. The wires to/from the speaker don’t look like 1936. And there are a few other things we’ll look at in the next video.

    • @larrychung3190
      @larrychung3190 8 หลายเดือนก่อน

      It could be a replaced speaker or perhaps a reconed (and rewired?) speaker, although the speaker itself looks about right, an old 10" Utah/Rola FC, a tough one to scrounge. 😜 The field coils usually measure b/t 700-1000ohms DCR, 8 ohm VC. A shallower basket might also explain the space allowing for the glass 6N6s. Thanks for the reply and I'll try to watch more carefully next time! 🙄🤓👍🏽

    • @PsionicAudio
      @PsionicAudio  8 หลายเดือนก่อน

      I appreciate the insights into this old fossil.

    • @PsionicAudio
      @PsionicAudio  8 หลายเดือนก่อน

      Larry - have you seen them with 1nFs across the grids of the 6N7s? This one came with one (non original to the amp) but no schematics seem to show it.

    • @larrychung3190
      @larrychung3190 8 หลายเดือนก่อน

      Hi Lyle - no, I haven't. I've worked on a few of these early ones and several of the slightly later versions and not seen any caps across the grids of the 6N7s or like-functioning tubes. Btw, I misspoke above about the field coil DCR, the last one like this I had on my bench read 2500ohms DCR and 8ohm VC, it was a factory 10" Utah w/the Gibson round badge on the speaker bell. Please lmk if I can be of any informational assistance, happy to offer whatever I'm able to provide. Thanks again for sharing. (:

  • @Swodie_Jeetin
    @Swodie_Jeetin 8 หลายเดือนก่อน

    Lyle,
    Been subbed since your channel was quite a bit smaller, and for the record, I respect the hell out of your work. I'm not ever trying to troll, even if I do try to crack dumba** jokes in the comments sometimes.
    Here's my serious philosophical question for you:
    If an amp makes it this long, to the point where only the iron, chassis, and cabinet are "original" (the physical components themselves, not that the values aren't the same), doesn't this mean the amp isn't original anymore? How does this differ from taking an old Bassman and rewiring the preamp as an SLO dirty channel for example? People seem to get really mad at the thought of modding old amps, but how is that really much different than this jewel? To me, it just shows that someone cared enough about this old thing to put in the effort to try and make it fit for their purpose. I mean, amps are just tools anyway, right? So what's wrong with modding something to suit the player? Thanks. Love your channel and wish you the best.

    • @PsionicAudio
      @PsionicAudio  8 หลายเดือนก่อน +1

      Thanks. In general I’m not opposed to unobtrusive mods. But in the case of rare historical pieces they should be left to the original circuit (but if parts of that circuit fail, replace them to keep that circuit working as designed). If the player wants a different sound, get a different amp.
      As far as “if things are changed is it still vintage” the analogy is a vintage car with fresh oil, belts, and brake pads. Yes, it’s still vintage, just driveable.

  • @guitarzan11litwin51
    @guitarzan11litwin51 8 หลายเดือนก่อน

    And I thought my 1963 was old.

  • @honkytonkinson9787
    @honkytonkinson9787 8 หลายเดือนก่อน

    I hope you charge less since the back of the amp is so easy to remove! 😂

  • @rodneyseiwald5135
    @rodneyseiwald5135 7 หลายเดือนก่อน

    Hi, Ted sent me. I think I would really like this content, but - pardon me for being so blunt - the lighting sucks. Mr. Carlson spoiled me.