Tascam 244 volume control dual and single variable resistor 20k 5k

This is in the 244 and maybe the 246 its an odd pot as its a dual pot centre is one the the surround is the other, it also has another pot at the back, Pot is marked on one side 20k a and other other 5k a and 5 k c

It must have been designed just for this unit I have some on boards so took a couple off

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