Select your tube type and amp class (Class A, Class AB, or high AB) and enter your Plate Voltage or B+. The calculator will give you the bias current for each tube. Use this as a guide for setting your bias.


Tube type:        
Amp class:       
Plate voltage:    V

Bias current for one tube:  mA



Bias Tables:





This information is for reference only. Griffin Effects claims no responsibility for any information provided. Use this tool at your own Risk.

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