[Amps] bandswitch wiper connection

Scott Townley nx7u at cox.net
Tue Sep 5 11:12:10 EDT 2006


It seems that most anode bandswitching arrangements put the switch wiper more towards the output side of the pi or pi-L network (e.g., on a pi-net the switch wiper is on the load side of the inductor).  
Is there a particular reason for doing so?  It would be a lot easier to add padding capacitors for the low bands on a single-pole/wafer switch if the wiper were on the tune side.  Or does the wiper assembly really add that much stray C?

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Scott Townley NX7U
Gilbert, AZ  DM43di


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