Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
need several 25K duel pots. Have several 10K pots and am contemplating subbing parts.
Will the pic on left work as well as the pic on the right?
this is for a stereo Tilt EQ unit
would save buying new pots.
using a 25K pot (can't locate a 25K 2 gang pot) has a range of 23hz to 23820hz according to application notes for the AND8177/D
the same circuit using a 50K pot has a range of 25hz to 21267hz
range ids determined by capacitor values.
a 100k pot =12hz to 18045
wish I could locate some 25K pots 2 gang
I believe a 10K pot would work if you also reduce the other resistor values by a factor of 1/2.5= .4, and increase the capacitor values by a factor of 2.5 (use closest standard values). The resulting frequency response should be near the same.
This will, of course, reduce the input impedance of the circuit so that must be allowed for by the driving circuit.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
