In Reply to: Pot badly needed: 500K ohm, linear, concentric w/SPST switch posted by Raver on May 5, 2006 at 01:44:27:
The HF-81 circut shows the Treble pot to have a tap @ 250K (and that tap is not indicted at mid-rotation) & besides virtually ALL Baxandall-type tone control stacks use Audio or Log taper pots with 10% of value @ mid-rotation. The HF-81 tone circut sure appears to be a Baxandall to me. Your present pot should have an A marking (as well as 500K) to indicate audio taper. I doubt you will discover one (tapped concentric with switch) except in another donar unit.
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Follow Ups
- Re: Wrong pot taper? - Ron Oehlert 05/6/0610:03:49 05/6/06 (1)
- Re: Eico Schematics here - Ron Oehlert 10:09:01 05/6/06 (0)