[R-390] kilocycle/megacycle movement

[Joe Foley]

--- Bob Camp <ham@cq.nu> wrote:
> Hi,
> 
> The FET vom will do fairly well but if you are going
> to work on old tube
> stuff you really need a VTVM. A lot of the readings
> are affected by the
> loading the voltmeter puts on the circuit. A ME-26
> or it's HP equivalent is
> a good one to get. They are dirt cheap. Ebay is a
> good place to find them.
> 
> The 465 with DVM option is an interesting gizmo. I
> have one sitting here.
> Like all digital volt meters it has it's
> limitations. A lot of the alignment
> procedures are "tune for peak" or "tune for null"
> stuff. That's a real pain
> with a digital display.
> 
> The military version of the 465 should have a manual
> on the same site as the
> 390 stuff. It's not the same as the one you and I
> have but it might be a
> help.
+++++++++++
"Appropriate" test gear has been going cheap on E-bay
recently, I got a TS-505 for under $20, a TS-352 for
$10, both are the Phaostron "A" models from the '52
contract, too.  A TS-585 for under $20, these things
must have been designed by a lunatic!  If battleships
were built like this they'd SINK!  The ZM-11 was
expensive at $60, interesting shipping damage, the
tuning cap was just barely shorted, in only one place
on its rotation, SMOKE, had to replace a resistor. 
Audio signal generators, AN/URM-127's, are going for
$10 if they get a bid at all!  1971, its the newest
piece of test equipment I own!

So far it all works, it was all very dirty, but it all
works.

That's where all my money went!

Joe



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