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I thought the caps should to, but even when i took the negative side of the cap off the board and just wired straight to the pot it was passing dc, and with...
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Solved... The 1M resistor to ground at the output was missing. I realized I had just rehoused the circuit, but replaced the jack with the pull down resistor...
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blender troubleshooting
Hey all,
I built the ROG splitter-blend and I'm getting dc voltage at the output. I don't have a ready schematic, but it's a basic opamp circuit...
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High Output Current Buffers/Line Drivers
Hey all,
I've been researching buffers and came across a forum conversation about "output buffers", being different from input buffers in...
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I don't think so, it's not turned up much past unity. I'm using it more as a buffer currently.
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SHO into TU-2 issues
Hey,
Recently I put my Zvex SHO first in my chain, running into a VP Jr. which goes to my other pedals and splits to my TU-2 tuner. It sounds great,...
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Cool. So there's an advantage to doing it like that vs. just doubling the voltage? I might try it in some pedals!
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That makes complete sense, but to make sure I'm really understanding: the OD820 does not actually double the voltage like say, the Klon, but instead provides...
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Maxon OD820 voltage conversion question
Hey all,
I've always been under the impression that the Maxon OD820 used a charge pump to bump 9v up to 16-18v, but today when I looked at...
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That's about what I can figure too. I noticed some are a little brighter than others, but that's easy to sort in the design. Just didn't know if the buffers...
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What makes one buffer better than another?
Hey all,
I built my first buffer a few years ago off the amz site, first the jfet, then the opamp buffer. Since then I've built the Cornish jfet buffer,...
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Gigrig Generator PS
Hey all,
I've been looking at the GigRig Generator power supply and I'm curious why their's has so much more current than anything else, but in a...
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Actually I didn't troubleshoot far enough apparently.. I think it's microphonic pickups, apparently very common on '65 Jags... I'll work it out.
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crazy feedback problem
Hey all,
I've got a Ceriatone DC30 I'm having a little trouble with. Anytime I hit a dirt pedal, if there's any gain at all, the amp starts to feed...
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True-bypass looper crosstalk
Hey,
I've noticed that even when I have loops unplugged (partly or completely) that my guitar signal still passes a decent amount. I'm guessing it's...
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Amplifer power light dims randomly
I've noticed that the light on my Ceriatone Dizzy30 (DC30 clone) seems to fluctuate brightness pretty regularly. I haven't noticed any particular situation...
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I tried subbing some opamps. The quietest I've gotten it is with a TL072 in the gain circuit, but with the 4558 in the EQ. It's the same amount of noise...
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haha i guess I'm showing my ignorance...
I'll try the 201 then, really just trying things to get rid of all the noise.
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