Update. I managed to solder in some leads to connect pin1 2 and 3 to the board. Reading 0v output so pretty sure the converter is toast.
any suggestions...
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Years ago we found this cleaner that you brush on that is OK for electronics. All I can say about it was that it smelled like Bubble gum and was actually...
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Hi G1 thanks for the response.
Do you know of any suppliers that would stock the part?
I'll recheck the input voltage as I've connected a bench...
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Hi there stevenrb718,
I have a mooer preamp live on the bench with similar symptoms. Where did you manage to find the wra1209cs-1w regulator?...
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Well one common point might be D12 on either of the schematics. Looks like same circuit in the older 78 model but it is labeled D15....
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11.5V in is not sufficient. You need minimum 12V with minimum 1A current power supply.
For that kind of shipping cost you want to verify the part is...
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Agree, especially given that it's designed for use with a single supply....
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Still need more info. There are 2 different schematics in that pdf. Do you have the one on pg.3 or on pg.7 ?
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AFAIC, "accuracy" is moot. Most of the legend about this or that issue of Big Muff seems to regularly be based on a single example, resulting in...
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Of course the new 6EU7s did absolutely nothing. So went on to try many things and finally I got to the 470K resistor on pin 5 the grid of the 6EU7 where the...
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No on both accounts. I too doubted replacing the TL074. Thus far, I haven't removed the power amp assembly from the chassis. I also doubt if the problem...
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JC-120 Bypass Chorus "Gate"
Hi folks. I've got an early 80s JC-120 that gates the Chorus/Vibrato effect at lower volumes.
I've had this problem for years, and finally found...
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2SJ176 jugFets in this employment are prone to fail, not the Vactrol though.
Why are you replaceing the TL074? Throwing parts at it won't tell you what...
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Vactrol Vactec sources?
I'm presently servicing an Ampeg SVT4-Pro that has significant distortion in the Vactec-based Limiter in the front end of the Power Amp Circuit. It uses...
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MOOER preamp live part
Gday , i am a hobbiest luthier in Auckland Nz. I had a mooer preamp live blow up on me. I managed to repair it by replacing blown capacitors. It worked fine...
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Go to this link and look above the sticky topics for a blue button that says '+ New Topic' and click on that button: https://music-electronics-forum.com...
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