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  1. Replies
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    There is a thread about the Gibson G30 and hum...

    There is a thread about the Gibson G30 and hum issues here...

    https://music-electronics-forum.com/showthread.php?t=40551

    .
  2. Correct, the 3 blue caps are the power supply...

    Correct, the 3 blue caps are the power supply electros.

    470uf 35V .... could get 50V there
    and the two 47uf 50V
  3. Yes those will work. As pointed out by dmeek...

    Yes those will work.

    As pointed out by dmeek the 100uf could go to 35V as it is in the power supply.
    Never hurts to go a bit bigger on the voltage rating, just don't go smaller, esp with power...
  4. At that age, late 70's early 80's, I would...

    At that age, late 70's early 80's, I would wholesale replace all electro's and trouble shoot from there.

    My guess is those small CSA electro caps are the most likely culprit.
  5. My vote would be that some/all of those...

    My vote would be that some/all of those electrolytic caps are well past their prime.

    How "vintage" is it? Any idea what year it was made?
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    The planet is overpopulated (over 7 billion).......

    The planet is overpopulated (over 7 billion).... we are killing it...pollution etc...

    This (flu's, disease etc) is Mother Nature fighting back.

    Stupid humans.... :sad:
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    Got DC on the input jack?

    Got DC on the input jack?
  8. Replies
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    I got one of these.... ...

    I got one of these....

    https://www.ebay.ca/itm/110V-S-993A-Electric-Vacuum-Desoldering-Pump-Solder-Sucker-Gun-Welding-Tool/303471419813?hash=item46a84e61a5:g:piAAAOSwRn9eN7sh

    It works ok. Seems...
  9. Replies
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    Obviously a PA head, here's a ended listing on...

    Obviously a PA head, here's a ended listing on Reverb...

    https://reverb.com/uk/item/16618286-acoustic-control-corp-pa-set-up-805-speakers-840-head-1972-vintage-and-rare
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    Welcome! I have the same Snap-On ratcheting...

    Welcome!

    I have the same Snap-On ratcheting screwdriver (actually a couple of them, one in Pink!)
    They came with the ACR bits and the Snap-On dealer made a point of pointing them out to me.
    I...
  11. Replies
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    ACR I believe, can you see the ACR markings on...

    ACR I believe, can you see the ACR markings on the side hex bit?

    Anti Cam Removal? Ribs?

    https://toolguyd.com/anti-cam-out-screwdriver-tips-aco-acr/
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    Yes. I've said this before and maybe bears...

    Yes.

    I've said this before and maybe bears repeating?

    Guitar amplifiers are unique in the electronics world, where the *user* is electrically connected to the device at all times (while in...
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    56297 ...

    56297

    ...
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    I ordered from him about a year and a half ago...

    I ordered from him about a year and a half ago when he still used PayPal.

    Never got my stuff and after 3 months of no response I filed a claim with PayPal and got my money back.

    STAY AWAY!!!!
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    GHS Fast Fret... ...

    GHS Fast Fret...

    https://www.long-mcquade.com/1623/Guitars/Accessories/GHS/Fast_Fret_String_Cleaner.htm
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    I assume the stock holes are less than 1/4" ? ...

    I assume the stock holes are less than 1/4" ?

    If so, a step drill would be the cleanest and easiest way to open them up to 1/4".

    They are great for drilling clean holes in thin material.

    If...
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    Looks like something I need... :) Only trouble...

    Looks like something I need... :)

    Only trouble is, I use 3 different guitars when we play live.
    Each has it's own strap (with locks) always attached.
    I just put one down and sling the next over...
  18. I buy these but they only come in 500K and 250K....

    I buy these but they only come in 500K and 250K.

    https://www.tubesandmore.com/products/potentiometer-cts-audio-knurled-shaft-375-bushing-dpdt

    Being CTS it's easy to swap the wafer for a 1M, so...
  19. 54082

    54082
  20. Replies
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    Not about modeling gear, but "lost in the mix"...

    Not about modeling gear, but "lost in the mix" was a problem for our band even with tube amps mic'ed to mixer/PA and later,
    with analog pedal board direct to mixer/PA.

    We found that "EQ is...
  21. I also don't like those thick plastic-y feeling...

    I also don't like those thick plastic-y feeling poly finishes.

    Some poly finishes are ok, like my older Deluxe Nashville Tele has. (sunburst)
    It's poly but seems thin-ish, and doesn't feel like...
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    Thanks! :) Yes, the S/B switch is on the main...

    Thanks! :)

    Yes, the S/B switch is on the main power switch.

    It's one of those 3 position things. Off-Standby-On

    I should have labelled the schematic switches S1a and S1b
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    Yup... I have posted this before... but here it...

    Yup... I have posted this before... but here it is again...

    I fixed mine...

    Stock Blues Junior from the master volume to the output.

    Front end is "more or less" the AB763 minus the tremolo....
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    :D:D:D about the cat...

    :D:D:D about the cat...
  25. All this tech stuff is waaaay over my pay...

    All this tech stuff is waaaay over my pay grade... but I do know...

    KOC recommends 1K to 2.2K screen resistors in his TUT book series.

    That's all I got...
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    Sticky: Hoffman is scaling back. As of now, the web...

    Hoffman is scaling back.
    As of now, the web store is still open but he's not carrying some things...
    ...
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    Sticky: A couple to add... For fellow Canadians, Next...

    A couple to add...

    For fellow Canadians, Next Gen Guitars, free shipping in Canada for orders over $149.00 CAD
    They use Canada Post and require a signature at delivery.
    They will NOT leave the...
  28. Looks great!.... .... but $160.00 CAD... Yikes!

    Looks great!....

    .... but $160.00 CAD... Yikes!
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