"ablebravo" wrote in message
ups.com...
thanks again, richard. i am printing this whole train out
to go down
everyone's checklists. yes, i have an eico sig gen,almost
as old as
the set. i check it against an aor 8200 scanner set for
the target
freq at each alignment. it is usually really close to
right on the
money. have an old tek 465b 200mhz, which is still
something of a
mystery, but i can use it in simple ways. i think i can
find the
output. tube-tested the mixer/osci tube itself, and again
got ok.

have also an eico signal tracer, but have only read a bit
about how to
use.

i do plan to check the tuning cap wiring. i did redo the
solder
joints, and while i did photo and mark the wires as the
old came out, i
could have made a mistake. it should be easy to undo and
jumper to
check -- mistake would have to be in center gang area.
wires not long
enough to grossly change where they go.
it will take me a while to go thru all this -- thank you
all.
ab

Richard Knoppow wrote:
"ablebravo" wrote in message
ups.com...
thx richard. esp on how to test the coils. i will do

Long thread snipped...

If you need a handbook for the Tek 465-B there is one on
the BAMA site at:
http://bama.sbc.edu/tektroni.htm
And for Eico instruments at:
http://bama.sbc.edu/eico.htm

This is a very good site to bookmark.

The signal tracer is a wide band amplifier with a
detector on it. You can probe around in the circuit to find
out what is there. That and the scope are powerful tools for
analysing exactly this sort of problem. You can use the
scope with either a high impedance probe or a simple pick-up
loop to look at the oscillator output. The look will cause
the least disturbance to the circuit you are measuring.


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Richard Knoppow
Los Angeles, CA, USA