Pots for input attenuators
Posted: Thu Aug 01, 2013 5:47 pm
I plan to add two input attenuators to a Dynaco ST35. Since the chassis is so slim, I bough two mini Clarostat linear taper 250K pots. To get close to the desired 100K ideal attenuator value, I swamped each with a 250K resistor.
On my meter, the lowest resistance with full clockwise rotation of the pot is 1.5 ohms on one pot, 1.0 on the other. Doesn't look too good. Did I get the wrong type of pots? I was assuming that when I want full signal passing into the the amp, I should be getting close to 0, with both pots having almost the same reading?
On my meter, the lowest resistance with full clockwise rotation of the pot is 1.5 ohms on one pot, 1.0 on the other. Doesn't look too good. Did I get the wrong type of pots? I was assuming that when I want full signal passing into the the amp, I should be getting close to 0, with both pots having almost the same reading?