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  1. Why has this been edited? Where is the link to...

    Why has this been edited?

    Where is the link to the Deep Blue?
  2. Sorry. I missed that.

    Sorry.
    I missed that.
  3. Replies
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    Sticky: I just purchased some Fender 12AX7 sockets from...

    I just purchased some Fender 12AX7 sockets from Angela.
  4. The Deep Blue does Not need a 9 Vdc battery....

    The Deep Blue does Not need a 9 Vdc battery.
    That is stated in the Operation.
    It is utilizing the Phantom voltage on Pin 2.

    You need a double pole switch as shown to use the leds in your...
  5. http://www.l-com.com/firewire-din-scsi-sata-econom...

    http://www.l-com.com/firewire-din-scsi-sata-economy-male-male-mini-din-cable-din-8-fully-populated-100-shielded
    8 pin Mini DIN cable.
    Male to Male.
    3', 6', 10' or 25'.

    This is the pin...
  6. http://www.abamps.com/contactus.html

    http://www.abamps.com/contactus.html
  7. Replies
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    Don't forget the voltage rating. That is the...

    Don't forget the voltage rating.

    That is the voltage level that the fuse can withstand without internally arcing over in the event of a failure.
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    Have you tried 'biasing' the tubes until the...

    Have you tried 'biasing' the tubes until the crossover notch just disappears?

    I use a lowish output voltage for the test.
    Forget about the slight notch that appears when approaching full power!
  9. Replies
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    If you start mucking around replacing caps &...

    If you start mucking around replacing caps & other parts with the amp nonfunctional at this point, how will you know if you got it correct.

    That is why I strongly advise that you troubleshoot the...
  10. Replies
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    The schematic copy with better resolution: ...

    The schematic copy with better resolution:

    53917

    53918
  11. Replies
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    Is this the Sano amp that the reverb recovery...

    Is this the Sano amp that the reverb recovery goes to a separate 5" or 6" speaker?
  12. Replies
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    My advise is to NOT do anything until else to the...

    My advise is to NOT do anything until else to the amplifier you get the amp working.
  13. Misprint. 1N4007 diode is what you want....

    Misprint.
    1N4007 diode is what you want.
    (1N7007 does not exist)
  14. Replies
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    It's only a guess but I would venture that the...

    It's only a guess but I would venture that the Green wire is ground.
  15. Replies
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    More direct link to the schematic:...

    More direct link to the schematic: https://music-electronics-forum.com/attachment.php?attachmentid=53906&d=1560185842
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    Reload of schematic: 53906

    Reload of schematic: 53906
  17. Replies
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    If the amp is anything like some of the QSC amps...

    If the amp is anything like some of the QSC amps (as concerning the I/P limiting circuit) this should be a once and done adjustment.
    QSC has you drive the amp to full power into a dummy load (we are...
  18. Sticky: A quick, down & dirty test of the OT polarity...

    A quick, down & dirty test of the OT polarity with negative feedback:
    -Drive the amp to a certain level.
    -Measure the output voltage.
    -Now disable the feedback path (wire, resistor) while...
  19. Not too clear on the issue. If you disconnect...

    Not too clear on the issue.

    If you disconnect the SMPS X4 connector the 40Vdc /80Vdc voltages are good?
  20. Replies
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    The Classic 30 switch will work. 53830

    The Classic 30 switch will work.

    53830
  21. Non DSP: 53828

    Non DSP: 53828
  22. Here is the Champion 30 DSP service manual. ...

    Here is the Champion 30 DSP service manual.

    53826

    Read Page 5 as it pertains to the signal flow.
  23. Here is the schematic that I have: 53816

    Here is the schematic that I have: 53816
  24. Pignose.com calls out a 15Vdc supply:...

    Pignose.com calls out a 15Vdc supply: https://pignoseamps.com/product/regulated-ac-adaptercharger-for-hog-series-amps/
  25. worth a shot ;...

    worth a shot ; https://www.ebay.com/itm/Marshall-8100-Valvestate-100V-One-Tube-Preamp-Head-Chassis-Only-parts-Repair/264281080453?hash=item3d88614285:g:ITkAAOSwhrpcRMvg
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    Unfortunately, solid state amp repair can be a...

    Unfortunately, solid state amp repair can be a real 'bear'.

    Tube amps are relatively easy as the high voltage stages are coupled to the next stage by Vdc blocking capacitors.
    Which makes things...
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    Awe inspiring troubleshooting!

    Awe inspiring troubleshooting!
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    "You mind sharing how and where I can measure AC...

    "You mind sharing how and where I can measure AC ripple".
    You have already demonstrated that you can safely measure the DC voltage on the power supply nodes.
    So do the same except set your meter to...
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