[Amps] bipolar input and output impedance

Dan Sawyer dansawyer at earthlink.net
Thu Jun 4 07:35:21 PDT 2009

What are the bipolar HF power transistor specs that influence or 
determine the input and output impedance? I have an ENI circuit using 
TH430 transistors with 4:1 input and output transformers, the EB-63 
circuit based on MRF 454s uses 16:1 transformers. What transistor 
parameters influence transformer design?
Thanks - Dan

More information about the Amps mailing list