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    A friendīs brother who received Electronics...

    A friendīs brother who received Electronics lessons from him and resented it, designed an "OFF Switch" .... a N.O spst switch wired across Mains: you flip the toggle and turn everything OFF .
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    Thanks :) I expected a driver IC on the other...

    Thanks :)

    I expected a driver IC on the other side of the Transformer and very intrigued by finding none. WTF?
  3. Yes, in fact itīs already too diluted compared to...

    Yes, in fact itīs already too diluted compared to the dedicated speaker edge sealant.

    But itīs not exactly "silicone" but artificial "latex".
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    Easy, just replace incumbent fuses with >20A ones...

    Easy, just replace incumbent fuses with >20A ones taken from nearest car or motorcycle or wrap burnt ones with aluminum foil, then turn on 20 times and watch parts smolder while scratching your head...
  5. The Isle of Wight video starts with Loud and...

    The Isle of Wight video starts with Loud and Clean Hiwatt.
    And then at 2:30 he goes back, near the amps, and steps on some nasty distortion pedal.
    Anybody trying to get that sound from Guitar +...
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    Well, it *does* sound good: ...

    Well, it *does* sound good:

    https://www.youtube.com/watch?v=lwCZZEBgqg8
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    Cool. A perpendicular picture, with PCB filling...

    Cool.
    A perpendicular picture, with PCB filling screen end to end and all parts visible would be fine.
    Same but from copper side would be the icing on the cake.
  8. :thumbsup:

    :thumbsup:
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    Excellent point. :thumbsup: Somebody should...

    Excellent point. :thumbsup:

    Somebody should "let his fingers do the walking" ;)
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    Yes, definitely worth a call, since a call is...

    Yes, definitely worth a call, since a call is cheap.

    Sadly I think Loud as a whole completely disconnected from Ampeg, guess if they had a warehouse full of Ampeg stuff they just gave the key to...
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    Why would he? :spin::spin: Any relation...

    Why would he? :spin::spin:

    Any relation between Loud and Ampeg? :confused:
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    Oh, your links are fine but from 2001 to 2008. ...

    Oh, your links are fine but from 2001 to 2008. :)

    Fresher news (May 2018) is:
    http://mmrmagazine.com/news/upfront/yamaha-guitar-group-acquires-ampeg/
    which states:


    But donīt worry:...
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    Mmmmhm ... you friends with some guru man? :p ...

    Mmmmhm ... you friends with some guru man? :p

    That is old news, now itīs "yampeg" :D
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    Laney makes killer amps, very good sounding, very...

    Laney makes killer amps, very good sounding, very well built, their own HH speaker brand is exact same as equivalent Celestions (and really made in UK) but they never got respect.

    Those VC Vintage...
  15. Good. Buy a small roll (10 meters?) of...

    Good.

    Buy a small roll (10 meters?) of stranded (not solid) 0.35mm^2 wire.
    If the only one youīll ever buy I suggest white or grey colour which are "neutral" ; while Red, Black, Blue or Green are...
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    Ok, tell him to write Factory and ask them what...

    Ok, tell him to write Factory and ask them what to do.

    Itīs an expensive PRO product, they will try to find a solution.

    They might even send you a schematic and needed parts if they want to...
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    Ouch!!! Usual bulbs are exactly like car dome...

    Ouch!!!
    Usual bulbs are exactly like car dome lights , with conical metallic ends,which clip on a suitable socket.

    I bet vibration unseated them or caused reliability problems so now they got the...
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    Part number wonīt match :surprised: but...

    Part number wonīt match :surprised: but important parameters will :p

    https://www.bulbtown.com/CE17_MINIATURE_BULB_BA15D_BASE_p/ce17.htm

    Before nitpicking, 36W and 40W is the same,within 10% of...
  19. https://music-electronics-forum.com/attachment.php...

    https://music-electronics-forum.com/attachment.php?attachmentid=3490&d=1226620937

    plus:





    In principle, and just for testing, connect battery clip Red to Red on PCB, and battery clip...
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    From what I see that one is a reguklar 16mm pot,...

    From what I see that one is a reguklar 16mm pot, BUT with and unthreaded neck extension so it sits some 8 or 10 mm further away from front panel, which is usually done so a few tracks can be tracd in...
  21. Sharp eyes, huh? In which case resistors might...

    Sharp eyes, huh?

    In which case resistors might be the artificial balanced ground .

    Well, in that case, it does NOT have any influence on sound; except, hopefully, less hum.

    It should have a,...
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    Yes, the company head office may be anywhere, but...

    Yes, the company head office may be anywhere, but since USA is *THE* Market, I am certain they will always have a beeg warehouse in there.

    Which should stock parts and consumables such as bulbs....
  23. Thanks a lot. Looks like THE REAL THING, huh?...

    Thanks a lot.
    Looks like THE REAL THING, huh? :D:D:D:D:D

    Like we say here: "happier than dog with two tails" :D
  24. Me too, since we canīt match PCB to Schematic :(

    Me too, since we canīt match PCB to Schematic :(
  25. Thanks :) I donīt simulate but use pencil and...

    Thanks :)

    I donīt simulate but use pencil and paper and know the Math, so no big deal :)

    The problem is that that RC net is not only "warmth" , but also a strong level attenuator: we are adding...
  26. Please donīt :surprised: Cutting 1 tube leg is...

    Please donīt :surprised:

    Cutting 1 tube leg is an extreme measure to do a test, it solves nothing and of course why would you chop two tubes?
  27. definitely the same: 6 transistors, 2 germanium...

    definitely the same: 6 transistors, 2 germanium diodes, same layout ... what else?

    But you forgot an important part: you treated us to two top pictures ... but none of the bottom, copper tracks...
  28. Yes, thatīs the one. No big deal with the tap...

    Yes, thatīs the one.

    No big deal with the tap which best case adds buzz but I still need two switches: one to send "strong" reverb tank drive signal to last Reverb channel triode to overdrive it...
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