Just wondering if anyone has studied into how much capacitance an old fashioned big metal pot might have vs a modern plastic mini pot?
Obviously the value of the pot will have a major effect on any capacitance ,higher values mean more treble leaked to ground .
My question arises in relation to the Federal Am-864/u which has a dual 500k log pot at the input, of course if the unit was used as an Am limiter, audio above around 5khz would make little difference either way ,but I'm working on building a Federal with modern audio transformers ,so Im wondering if the dual 500k pot at the input will kill the highs, Ive seen one person who used a 2x50k pot,but Im not sure if this will effect the circuit operation .
Any insight into this would be great.
Obviously the value of the pot will have a major effect on any capacitance ,higher values mean more treble leaked to ground .
My question arises in relation to the Federal Am-864/u which has a dual 500k log pot at the input, of course if the unit was used as an Am limiter, audio above around 5khz would make little difference either way ,but I'm working on building a Federal with modern audio transformers ,so Im wondering if the dual 500k pot at the input will kill the highs, Ive seen one person who used a 2x50k pot,but Im not sure if this will effect the circuit operation .
Any insight into this would be great.