Of course, if the designer used tetrodes with passive grid and
perhaps an input LPF to absorb any input capacitance (see Svetlana
application note), then a five or six position output tank switch
would be usable.
... Joe Subich, K4IK ex-W8IK, AD8I
> -----Original Message-----
> From: firstname.lastname@example.org [mailto:email@example.com]On
> Behalf Of Peter Chadwick
> Sent: Thursday, October 12, 2000 8:12 AM
> To: 'W8JI@contesting.com'; 'amps'
> Subject: RE: [AMPS] Switches
> For 9 ham bands, do you have to have 9 switch positions? 5 PA
> positions can cover 1.8 to 30 MHz without too much variation in
> operating Q; admittedly, you need something clever to switch
> input circuits, but cheap relays are a possibility, with some
> not-too-clever mechanics.
> Peter G3RZP
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