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  1. They use the same transistors all over the amp so...

    They use the same transistors all over the amp so you can swap them. The important thing with a diff pair is they have to have a matching hfe (beta). In the old days we used to have to get beta...
  2. Have you changed the diff pair? They are about $1...

    Have you changed the diff pair? They are about $1 from MCM last time I looked.
  3. There’s really nothing “special” about these amps...

    There’s really nothing “special” about these amps except they seem to have a lot of intermittent problems. But as Enzo will tell you.. you don’t hear about the thousands that work fine. The last one...
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    Unfortunately no.. but I saw a “teaser” for...

    Unfortunately no.. but I saw a “teaser” for them.. I actually opened up a “special” email account for just this kind of thing.
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    Honestly.. they are available at Wish for $49......

    Honestly.. they are available at Wish for $49... don’t know the shipping cost.
    https://www.wish.com/
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    This isn’t under $50..it’s $150.. but it seems...

    This isn’t under $50..it’s $150.. but it seems handy. Max 150v rms input but you can use up to a 1000:1 probe. I’ve seen them on WISH for $50.
    Digital Oscilloscope Kit, 3 in 1 Universal Test...
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    Yep.. these “techs” had a chemistry lab tech...

    Yep.. these “techs” had a chemistry lab tech background. Even the PHD Chemist in charge didn’t have a clue. No idea what that little “M” meant lol! “But it says 20”!
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    There are so many low cost useful ones out there...

    There are so many low cost useful ones out there today that it’s hard to say.. I can tell you I like one that has capacitor function (just for measuring value), a diode setting, and a continuity...
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    Sounds a little “hairy” to me when pushed......

    Sounds a little “hairy” to me when pushed... might be the speaker.. might be the band pass. Sounds good clean. If you are still using 6L6s, consider installing an effects loop and using a solid state...
  10. My favorite Strat is my 1983 Japanese Squier. It...

    My favorite Strat is my 1983 Japanese Squier. It even has a Gibson scale. I posted a video in another section of my cheap electric resonator guitar. This not a new phenomenon.. a lot is quality...
  11. Except for a a curiosity why bother?... A Snark...

    Except for a a curiosity why bother?... A Snark probably works better..
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    And that weird cotton plug filter that goes in...

    And that weird cotton plug filter that goes in the glass? I guess you can still get them.
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    Just make sure you have all the parts. The glass...

    Just make sure you have all the parts. The glass tube, the curved metal piece that sets in the tube, and the air line filter holder with the paper filters. They take a lot maintenance and you need a...
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    I’ve had both Hako and Pace. The Pace is built...

    I’ve had both Hako and Pace. The Pace is built better. The Hako is more versatile. I agree with Enzo.. If you are in a shop reworking a lot of the same units that the machine happens to be useful for...
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    From what I understand the “basic” design of the...

    From what I understand the “basic” design of the transducer/element is pretty much the same. I’m pretty sure 57 and 58s are the same.. the difference being the pattern. I have a bunch of Behringer...
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    Shure RK143G Replacement Mic Grille for SM58...

    Shure RK143G Replacement Mic Grille for SM58 (Wired and Wireless) https://www.amazon.com/dp/B0002GZOS0/ref=cm_sw_r_cp_tai_lRMeEbMN870C7

    I use these a lot.. $8 free shipping usually.. For live...
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    I used to believe all of that... but I spent too...

    I used to believe all of that... but I spent too many years working on pro and consumer camcorders back in the day... I would check a whole board of surface mount caps and replace the ones with bad...
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    Does it do it when the Mac is running off of the...

    Does it do it when the Mac is running off of the battery?
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    This “fear of grounding” thing amuses me...

    This “fear of grounding” thing amuses me sometimes.. and I’m all for safety and adhering to the new regulations. But I play clubs. Most of the time it’s a crap shoot that an outlet is even grounded...
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    Yep... and how many times have you tested a...

    Yep... and how many times have you tested a cap... and it tested good... but when replaced solved the issue. Tremelo circuits come to mind. Very few cap testers will test a cap under operating...
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    I used to use an ESR meter a lot... especially...

    I used to use an ESR meter a lot... especially for surface mount caps. After a while I got tired of call backs and simply replace any suspected cap. SUPPOSEDLY.. you can check ESR in circuit.... yeah...
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    I played a New Years Eve gig.. our bass player...

    I played a New Years Eve gig.. our bass player had no amp on stage at all. SansAmp DI. I can’t tell the difference. I still use a small tube amp for natural sustain and feedback. But a lower stage...
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    Why left heavy, unreliable, old gear when new,...

    Why left heavy, unreliable, old gear when new, inexpensive stuff works so much better. Especially live. I have his argument constantly with people I play with.
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    Absolutely.. The 6G5 uses -55vdc bias. I’m sure...

    Absolutely.. The 6G5 uses -55vdc bias. I’m sure you can adjust the voltage divider to work..
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    Yep replace it all with quality stuff. A little...

    Yep replace it all with quality stuff. A little more money and time spent now will save you years of cursing misery. I would even run new wire to the pickups.
  26. The issues are usually not “heat” related in the...

    The issues are usually not “heat” related in the normal troubleshooting sense. I suspect there are problems with the junctions or lead contact attachment points within the transistors. I suspect a...
  27. Thanks Chuck! I’ll be doing 4 sets New Years...

    Thanks Chuck! I’ll be doing 4 sets New Years Eve.. my routine after my usual weekly Enbrel injection and daily BP meds will be a Valium, a Vicodin (I’m no longer allowed Advil), one beer and one...
  28. Yeah.. that’s what I’m using now. Two channel 2x...

    Yeah.. that’s what I’m using now. Two channel 2x EL84 amp with one 12” and a pedal board... or a Super Champ and a multiple analog effects pedal at even lower volume situations.. And yeah.. I nearly...
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