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Questions about tubes and gear that glows. FAQ

Screen resistors

Al, on many Fender amps... changing the screen resistors to wire wound or metal oxide, 5-watt 1k-ohm usually helps stabilize the output tubes.

My DR runs over 450VDC on the plates. I bias them to about 20mA per tube.

 photo bias and voltage_zpsiszlpegp.jpg

Photo is of my Super Reverb, I put 1k-ohm bricks onto the screen grids.

 photo screen resistor_zpsk7am3ppn.jpg

Good luck!


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  • Screen resistors - FenderLover 17:53:11 06/08/17 (0)

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