On a sunny day (16 Sep 2006 07:43:17 -0700) it happened "Telstar Electronics"
wrote in
om:

Jan Panteltje wrote:
I would expect some thermistor for temp compensation, he is so proud of,
do not see it.

The temperature compensation is accomplished with a bipolar transistor
mounted to the sink near the RF devices. You can see it in the photos.
Since this transistor is also silicon, it tracks almost perfectly with
the RF devices... and with a little extra circuitry (that is voltage
regulated)... can hold the bias very stable over a wide temperature
range.

Yes, that is a known technique, was already wondering what that transistor was
for.
Why do you start a new subject line?, It should start with (as you _do_
have a reference line.
Bad usenet practice.