TH1 is probably a thermistor, a temperature-dependent resistor.
Guessing it's there to help stabilize the LFO frequency as the
temperature changes. The transistor that it's hooked to will
change a little with temp, so having the resistor change as well
sort of cancels that out.
You don't need to worry about the vias. Only pc bds damaged
by corrosion have issues with them.
I am guessing that you don't have an oscilloscope, right?
Did you get a good 5V on the KLM-367 yet?
Good luck,
Bob
--------------------------------------------
On Mon, 2/8/16, jw_dewdney@yahoo.com [PolySix] <PolySix@yahoogroups.com> wrote:
Subject: Re: [PolySix] Re: The Post I didn't want to make....
To: PolySix@yahoogroups.com
Date: Monday, February 8, 2016, 12:30 AM
Bob - just found a few components i missed (!!) -
the TH1 (whatever that is.... oscillator??) - and on of the
resistors (d'oh!) - so that should help things. Still
not working though -
question: " Do the vias all have to be
filled/soldered??"
-
I'd assumed not since they were (presumably plated
through... but just in the off chance I somehow missed
this.
Thanks for all your
help today by the way.
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