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They actually have an M7 thread on these pots, I was able to fab an adaptor and get those pots cleaned out. They are dead silent now as they are rotated....
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After going through most of my repair parts/equipment, much of it still in boxes from moving two years ago, I found one of my adaptors...unfortunately it...
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Thanks...I used to have several adaptors I made many moons ago that screwed onto the threaded portion of different pots and then the other end was a tight...
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Question about Markbass Big Bang 500
Hey all...it's been a while since I posted here and was very saddened to see that Enzo is no longer with us. I will miss his avatar which showed his type...
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I'm kind of out of my element here. Question about an Alesis QS8 Synth
Hopefully this isn't too far off topic...Maybe someone works on keys here as well as amps.
I own an Alesis QS8 and have since they first came...Last edited by tim; 06-21-2022, 04:31 PM.
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I've spent more than my fair share of time troubleshooting transtube amps. They certainly are interesting but like just about everything else, if you are...
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OK Enzo, I had some time to figure out the paths of the sigs through the switching FETs and found that everything was going to where it was supposed to be...
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I'll check those tomorrow. I believe the gate control voltages originate at the DSP IC's. I need to try and follow them back to the preamp....
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Hey all...
It's been a while...I sold my home in NH and was in limbo for several years. My wife and I finally ended up in Southern Missouri last...
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Hi Enzo,
It has been so long since I've been on here I wasn't even sure if you were still on the forum...
Anyway, I'm pretty sure...
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OK...back at it again...
Here are the voltages around V3
Pins 1, 6 177vdc (no 1 khz sig seen where I would expect to see it)...Last edited by tim; 03-03-2017, 12:25 AM.
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Yeah, I'll probably be on it again tomorrow evening with a fresh pair of eyes (and fresh brain). I need to get this thing finally fixed so I can sell it and...
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And I call myself a tech...
I have been working on this for several hours and I think I'm approaching burnout (fortunately it's mine and...
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VOX AC15 reverb issues...I'm stumped.
Here are the schematics:
No Reverb...Reverb pre-send sig is present on grids of V3 but not the plates, unless...Last edited by tim; 03-02-2017, 12:45 AM.
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Is it possible that your variac is acting as an isolation transformer (isolating your amp from the mains)?
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Anyone have a schematic for a Fender solid state Bassman Compact
I have a Fender 80's Bassman "Compact" with a knackered preamp. I'll call Fender tomorrow if no one happens to have a schemo for it here....would...
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Haha! No problems on questioning my abilities Enzo...I certainly didn't take it that way but there are times I certainly do question them myself ...
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