[AMPS] Input matching experiment

[jstrohm@texas.net]

HEEHEEHEEHEE

Actually, I had planned to attach the output to a TS-117 dummy load and monitor temperature rise, and feed the input with a variety of QRP HF rigs, or with a sig gen driving a broadband linear amp if I can kludge something up.

220 MHz is outside the scope of this experiment.  The purpose is to develop a broad-banded input circuit for HF amps that requires no tuning but provides better efficiency than an untuned input at little additional cost.

In general, broad-banding the input for VHF and UHF amps is not feasible because the bands of interest are so far apart, and a tuned input can be achieved at low cost with a couple of pieces of copper and some dielectric sheet.

Jim N6OTQ



Original Message:
-----------------
From: S. J. Blackwell w5lu@hotmail.com
Date: Fri, 18 Jan 2002 17:07:51 +0000
To: jstrohm@texas.net, amps@contesting.com
Subject: Re: [AMPS] Input matching experiment


Jim,
Please set the 812A GG amp with the broad band untuned input to operate on 
the 220MHz band.
Good luck,
Sam, W5LU

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