[Amps] High Band Amp Considerations

[Carl]

3-500Z or 3CPX800A7 medical pull

Bandswitch and air variables of course, go for wider spacing on the Tune cap 
than the store bought amp compromises. Something in the 100pf @ 4500V range 
would minimize the arcing.

Carl
KM1H



----- Original Message ----- 
From: "Steve Flood" <kk7uv at bresnan.net>
To: <amps at contesting.com>
Sent: Thursday, January 26, 2012 7:58 AM
Subject: [Amps] High Band Amp Considerations


>I am pondering my next amp build - - a 5-bander (10 thru 20m) dedicated to
> my 5-band beam with around 800 - 1000w output.  All the better if I could
> use my existing power supply that has 2500/2900v at 600mA (or so)
> capability.
>
>
>
> Looking for a tube suggestion.   I'd prefer a single tube with good IMD
> specs, that is easily obtained/replaceable/affordable.
>
>
>
> By not having to design for lowband operation, are there some design
> considerations or optimizations I should be aware of ?  Bandswitch and
> tapped tank coil vs. roller inductor?   Vacuum vs air variables?
>
>
>
> Thanks,
>
> Steve KK7UV
>
>
>
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