Jan Panteltje wrote:
So we should not blame it on Telstar if anything is wrong with his amp.
I have to admit his PCB looks the nicest of all the ones at that site.
But whre is it heading? I dunno, but it is possible he does.

It's certainly true no design is perfect. The existing SkyWave has
proved to be a reliable design over the years. The new SkyWave
basically just adds the temperature compesated biasing. By controlling
the bias level when the amp heats up... this feature increases the
overall reliability even further by allowing the heat sink to run
significantly cooler. I don't waste resources on gimmicks like pre-amps
that just lower the overall reliability and don't really do anything.
If I add something to the design... I want it to be worth it. Where is
it heading?... a future revision already on the drawing board has both
over-temperature (using Analog devices TMP01) and excessive-swr
shutdown (using Sage Labs Wireline). When these two features are
incorporated... it should make the amplifier virtually indestructible
to burning up or antenna mismatches.

www.telstar-electronics.com