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Old 19th March 2004, 12:06 PM   #1
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Default volume POT...NOT ACCURATE!

hi

just finished my 2nd gainclone, after destroying the first.

i have a problem here, my gainclone's volume pot (10k 8ohms) isnt accurate. even though it's set to the minumum level, the sound is still audible. and i noticed that the sound of my older gainclone is much louder than this one. my first one can fill a large room, my second is not so loud.

whats wrong here?is it in the wiring of the pot?

tnx!

im using

lm3875
220k
22k
50k
100o uf
24 volts.
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Old 19th March 2004, 12:12 PM   #2
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how exactly did you wire it? picture, drawing?
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Old 19th March 2004, 12:21 PM   #3
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pot

l
50k
ground=left

4.7uf=middle


wire going to rca in=3rd
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Old 19th March 2004, 12:25 PM   #4
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sorry, not understandable.

One side of pot to GND, (outside RCA) other side to input/ middle of RCA, wiper ( the middle pin of pot) go to amplifiers input.
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Old 22nd March 2004, 08:58 PM   #5
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This might sound silly, but is it logarythmic ?

Maybe the pot has too small value, so the preamp output voltage drops because of that, and the amp sounds more quiet.

Have you tried some other pots ?
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