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2M Digital Pot?

Bert

Nov 22, 2011
17
Joined
Nov 22, 2011
Messages
17
I'm looking for some digital pots to replace some manual pots on an audio amplifier. Here's a schematic for the amp: http://tubefreak.com/recto2.gif. I might be reading this wrong, but it looks like a few of the pots go up to 2.2M ohms. Are there digital pots out there that go that high?
 

Bert

Nov 22, 2011
17
Joined
Nov 22, 2011
Messages
17
Here's a somewhat related question. I'm seeing things like "1B50K" and "10A250K" and "W20K" printed on the manual pots on my amp. Are these resistance values or something else like part numbers?
 

Resqueline

Jul 31, 2009
2,848
Joined
Jul 31, 2009
Messages
2,848
I don't know about the digital pot's, but usually A means Audio (or logarithmic/ volume) taper, B means linear taper, and W is probably a special or linear taper.
50k, 250k, & 20k is the resistance end-to-end. Read all about the secrets of pot's here.
 
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