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previous: Carlo Not sure if this will help nudge yo... -- 11/23/1999 4:20 PM

Re: Mesa Plastic Shafted Pots. Why?

11/23/1999 6:12 PM
Dave Stork	Re: Mesa Plastic Shafted Pots. Why? Yeah, if that log taper pot were replaced with a linear taper, the volume would "come up" a lot sooner for sure. It doesn't matter in the case of a Mesa amp whether you use a plastic or metal shaft pot, as long as it's the same value and taper as original. An instance where it would be fairly crucial to use a replacement with a plastic shaft would be in a case where the pot had a significant DC voltage across it, like an adjustment pot in a variable power supply. The wiper is already electrically insulated from the shaft in any style of pot, but the extra insulation afforded by a plastic shaft is necessary in some cases. I like to use metal-shaft pots when replacing broken original pots in Mesas.

11/23/1999 6:12 PM

Dave Stork

Re: Mesa Plastic Shafted Pots. Why?

Yeah, if that log taper pot were replaced with a linear taper, the volume would "come up" a lot sooner for sure.

It doesn't matter in the case of a Mesa amp whether you use a plastic or metal shaft pot, as long as it's the same value and taper as original. An instance where it would be fairly crucial to use a replacement with a plastic shaft would be in a case where the pot had a significant DC voltage across it, like an adjustment pot in a variable power supply. The wiper is already electrically insulated from the shaft in any style of pot, but the extra insulation afforded by a plastic shaft is necessary in some cases.

I like to use metal-shaft pots when replacing broken original pots in Mesas.

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