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pot in tube preamp
pot in tube preamp
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Old 5th June 2010, 04:38 AM   #1
chopchip is offline chopchip  Canada
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Location: calgary alberta tundra canada
Default pot in tube preamp

im building that zsp1 set kit from decware. the 100k ohm pot it came with is not smooth at all, it feels like it has gravel in it. i sprayed it etc but no improvement. i have a nice 250k pot. is it allright to use this one instead? it is on the input of the amp right after the rca input jacks
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Old 5th June 2010, 08:04 AM   #2
mjf is offline mjf  Austria
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i think it should work without problems.
i saw tube pre that had (passive) 1meg pot on the input..........
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Old 5th June 2010, 08:57 AM   #3
hidnplayr is offline hidnplayr  Belgium
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Location: Flandres
I think it depends what the maximum gridleak resistance is of the input tube.
Real tubes have top-caps
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