What potentiometer should I use for this phono pre-amp?

hyuna

Well-Known Member
Dec 12, 2016
9
0
81
Please consider this DIY phono pre-amp.

The text states, that resistors R9 and R22 may be exchanged for potentiometers for gain control.

Since the circuit uses 1.2k? resistors for R9 and R22, I was wondering what kind of potentiometer I'd need. I was thinking of a logarithmic 10k? pot. However I'm not sure. In case there's a formula for computing this kind of resistance, please let me know.

The arrow "-VA" at IC1 (pin 4) should connect to the "-VA" point above C2, right? Likewise on the right channel.
 

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