A1K/C1K Dual Gang Potentiometer?

anevilspar7an

anevilspar7an

Well-known member
As the title says I'm looking around to see if anyone knows of these potentiometers and if they can be found. The reason I'm looking for them is I'm fixing a 1998 Presonus M80 8 channel Mixer that has had a hard life, and for some reason Presonus made all channels and the headphones mix this weird part.
 
It's not that hard if you've got a set of small needle nose pliers. That is, youre unlikely to breaking anything in the process.
 
Yep, top wafer is Logarithmic and bottom wafer is Reverse Logarithmic. Both resistance is 1K. I can make it by buying multiple different pots to do it like Aleph Null suggested, I've done it before but absolutely despise doing the work. They are 16mm sizing. No manufacturer markings.
 
An A taper + reverse/inverted A(legs 1 and 3 swapped) taper would make more sense. A + C wouldn't mix equally.
 
May be worth calling a few of their service centers? Maybe it's used widely enough that someone has a few.
Presonus also takes requests for spare parts if you make an account and open ticket.
But, the difference between a A and C is pretty damn close to a linear. I'd try a dual lonear in one channel. Close enough to good enough
 
That is true. My guitarist may have an account already so I'll talk to him at rehearsal tomorrow. I appreciate everyone's input on this topic.
 
Have you seen a schematic of the circuit? Is there any chance they aren't actually using both gangs?
 
No schematic but my guitarist and I disassembled the unit to give it a thorough cleaning since it's had a hard life. The circuit uses both gangs since I was able to physically see the tracks.
 
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