[Elecraft] K3SYN3 with and without stiffener (was: shielding)

[Bill W4ZV]

Alexandr Kobranov wrote:
> 
> I am not sure - aren´t there 2 modifications of KSYN3 module - one for
> avoiding PLL problems in higher temperature (by changing R from 89k to
> 50k)
> and the second one for curinng "chirp" problem by increasing of the gain
> of
> some transistor by replacement of some other resistor? I suppose only the
> first one is a part of KSYN3 stiffener u/g.
> Or am I wrong?
> (Just to make clear which one is curing temperature stability, which one
> "chirp" problem and stiffener for avoiding "microphonic" effects.)
> 

Yes, I forgot about the oldest one regarding the stability at high
temperatures.  There are actually 3 different mods for 3 different
issues...see below for details:

http://www.mail-archive.com/elecraft@mailman.qth.net/msg96813.html

73,  Bill


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