Is there any way a linear potentiometer can be adapted to "fake log" and used as a shunt volume control please? Grateful for some advice!
See here.
ESP - A Better Volume Control
I've used this successfully in the past and found it worked much better than a cheap log pot.
ESP - A Better Volume Control
I've used this successfully in the past and found it worked much better than a cheap log pot.
Do a search on here, or Google for
"Law faking potentiometer"
Loads of information on shunt design and use.
"Law faking potentiometer"
Loads of information on shunt design and use.
Many thanks. I have done that-lots on law faking and shunt design, but I could not find anything on using a law faking pot in a shunt design.
Short answer: no.
Cheesy "Log faking" only "works" (sort of) in a variable voltage divider role (the classic way to use it) by heavily loading the wiper to ground section with a resistor 10% to 20% the pot resistance.
That action is useless in a shunt or NFB gain control.
EDIT: I make Guitar amps and small PA heads, use shunt gain controls for Distortion and Mic inputs respectively, and after much fruitless experimenting had to order Log/Audio pots, period.
Which work as expected 😉
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I had almost come to that conclusion, but wanted to check that I had not missed something. Many thanks for your advice.