[Exact Sound]

I bought it off eBay and the amp sounds fine but a fair amount of hash is audible when the volume wheel is turned. In fact...if turned quickly it will clip the amp?

In the past I have had good results using WD-40 on the fuzzy potentiometers but before I do that.... I wanted to ask what would be a better solution?

 

[TheSloth]

Quote:

Originally Posted by Exact Sound /img/forum/go_quote.gif I bought it off eBay and the amp sounds fine but a fair amount of hash is audible when the volume wheel is turned. In fact...if turned quickly it will clip the amp? In the past I have had good results using WD-40 on the fuzzy potentiometers but before I do that.... I wanted to ask what would be a better solution?

It's supposed to be like that. It was a compromise for SQ - they would have to have DC blocking caps in the signal path to get rid of the scratch on those pots, and they elected to do without.

 

[Exact Sound]

Quote:

Originally Posted by TheSloth /img/forum/go_quote.gif It's supposed to be like that. It was a compromise for SQ - they would have to have DC blocking caps in the signal path to get rid of the scratch on those pots, and they elected to do without.

I also have a current production Total BitHead amp that doesn't do this?

Are the specs for this potentiometer different on the BitHead vs. AirHead?

 

[TheSloth]

Quote:

Originally Posted by Exact Sound /img/forum/go_quote.gif I also have a current production Total BitHead amp that doesn't do this? Are the specs for this potentiometer different on the BitHead vs. AirHead?

No, the current production version has DC blocking caps in the circuit to kill the noise. They felt that the SQ was sufficiently improved to allow the tiny degradation of SQ that you get with them in the circuit.

 

[3602]

Just want some specs of the Air/BitHeads. Parts, signal path, schematics, etc. for personal DIY mods/upgrades.