Hi,xqtionHi
This is a schematic of the Prodipe Lamp Studio Pro tube mic.
Can anyone tell me if there is a high frequency attenuation/deemphasis going on in the signal flow ?
Thanks!!
Thanks Khron,I'm gonna guess the B+ is around 180v - the divider for the front diaphragm bias is about 1:3 [ 270k / (270+560k) ], and you usually want about 60v there.
Pin 6 may very well be some sort of mute circuitry, perhaps a delayed-startup? 0v there = mute (3k+150k for the cathode resistor); 5-6v = normal operation (150k bypassed, 3k as the cathode resistor).
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