Search Result

[Enzo]

This came after I closed my QSC authorized shop/ Do you have the schematics for us? I have no idea what or where Q16 D36 and so on might be. You report...

[Enzo]

Well at least products are out there that anticipate your need. MIDI is a digital control signal, not just a simple conversion. So whatever box you get/make...

[Enzo]

Not what you asked for, but might give you ideas:
https://www.sweetwater.com/store/det...pression-pedal
...

[Enzo]

Yes, AES is the retail outlet, and CEDist is the wholesale outlet, of the same company.

[Enzo]

Um, any chance the reverb return IC2 is turned to the off position by TR1?

[Enzo]

Oh crap, sorry. This system hates most of my files anymore. Try this...

[Enzo]

The switch triggers a flip flop made with two transistors. It just alternately toggles on then toggles off. Those transistors in turn control the gate...

[Enzo]

What voltage is on the screens? And is your HV supply a pair of stacked filter caps? Your 250vAC rectifies and filters to about 360v, so a stack gets you...

[Enzo]

Just for reference here is issue 5. The zeners are gone and the input circuit is a bit different...

[Enzo]

Your schematic says R2 is 47 ohms. Mine says it is 22 ohms. Yours is issue 4 mine is issue 5.

[Enzo]

Oh my. My first bass was a Rickenbacker hollow body. Body not deep. Long neck that weighed more than the body, you had to hold the neck up to play. But...

[Enzo]

If you can forgive me some more idle thinking:

If the red return RCA jack won't feed signal through, possible open in the L1, R15,C15 might leave...

[Enzo]

Oh my. Does it still behave this way if you disconnect the cable from CON8 near the reverb controls and IC1?

Are the two controls interactive?...

[Enzo]

If you post the schematic, we might get clues even if it is tough to read.

It is just a tube amp, so the cap values will be similar to most any...

[Enzo]

You probably already did, but...

Pans these days are configurable, make sure the INPUT jack is NOT grounded to the frame.

Feeds...

[Enzo]

Just idle thinking, but that emitter follower buffer alone does not invert the phase of the signal. When you use a whole TS I bet it does.

[Enzo]

The master has no effect, and disconnecting it stops the hum. SO your issue is between the master and th edge of the board. A missing ground, or a ground...

[Enzo]

When we discuss leaky caps, we don't usually mean all bulged and spewing fluids. Obviously caps that look that way are bad, but leakage refers to their ability...

[Enzo]

OK, the master down does not kill the hum but hum gone if cable is detached. SO I see three pins, A,B, C. A is output and other two 15v rails. How is...

[Enzo]

I read "stabilizer" as regulator, but I am just assuming...

[Enzo]

So isolate the problem. It is in the preamp, OK. R47 appears to be the aster, does turning that down turn the hum down? You have FX loop jacks. Connect...