Adding a Bias pot to a 5e3?

[chuckb]

Hey guys, I want to change my 5e3 to a fixed bais. Can someone tell me how I'm to do this? What size of pot,resistors,caps,etc.A schematic of this circuit would be great.

Chuck.

[tubeswell]

i.e.; a Harvard 5F10 with a 5E3 front end. For bias adjustment, the 56k in the bias voltage divider gets replaced with a 20k pot wired as a variable resistor (with the wiper shorted to one end of the pot), and then a 39k-47k resistor in series with the ground. Or use a 50k pot in series with a 27k resistor if you want more bias range