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RE: Potentiometer - Volume Pot

What tube is in the 1st stage? If it's a pentode, like the EF86 or 6SJ7, 250 Kohms is perfectly fine. OTOH, a 12AX7 section will be in trouble. Consider the low pass filter formed by the 1st tube's CMiller and the I/P resistance. Good phase shift performance considerations suggest that the LPF "corner" above 100 KHz.


Eli D.


Edits: 01/04/17
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