This calculator calculates the values of a pi coupler for a valve RF amplifier. It uses the method and formulas in CPI/Eimac's Care and Feeding of Power Grid Tubes.
The calculator does not do a lot of error checking, if you enter nonsense, it will produce nonsense. If the specified Qw is too low for Rin and Rload, no results can be calculated. NaN means not a number, check the input values. The calculator assumes lossless components.
|Rin||The impedance looking into the network, the required resonance load impedance for the valve(s)|
|Rload||The external load to be transformed|
|Qw||Working (or loaded) Q|
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© Copyright: Owen Duffy 1995, 2012. All rights reserved. Disclaimer.