[Milsurplus] TS-323/UR help

[WA5CAB at cs.com]

Bill,

I don't know of anything I would call a hidden gotcha, since you have the 
schematic.  However, it might be worth mentioning the following.  A+ and B- 
are common, not the more common A- and B-.  The switch on the side next to 
the external power connector selects external or internal, in case it isn't so 
marked.  There is an interlock switch S105 that disconnects A+/B- when you 
close the battery compartment door.  Early production did not have the 
STANDBY position on the main power switch.  And if you do decide to build an AC 
supply that fits into the battery compartment, do not operate it with the 
back door closed.  I used to collect BC-221's (well, I still have 60+ of them 
but don't consider them keepers anymore, except for a few) and without 
looking, I could usually tell whether a new (to me) unit had or once had a 
homebrew AC supply in it by opening the front door and sniffing for the smell of 
burned transformer insulation.

I do have a reprint of the maintenance manual, AN 08-35TS323-2, available.  
$20 plus $3.00 shipping CONUS.

In a message dated 2/28/2010 8:20:58 AM Central Standard Time, 
wrcromwell at gmail.com writes: 
> Hi Everybody,
> 
> I snagged a TS-323/UR heterodyne frequency meter. I haven't fired it up
> yet but it looks like all the pieces are there and it appears to be in
> very good condition. I'll apply power in the next few days. I've found a
> little bit of information including what to feed it for power and a
> schematic.
> 
> I haven't found any kind of user or maintenance manual (but Google has
> thousands of hits). I've been Using an LM for a number of years. If this
> thing is used the same way as an LM I already know what to do. I'm
> asking about possible "gotcha's". I would like to have this thing
> running on my bench to take over where the LM leaves off. I know there
> are digital frequency counters, and digital spectrum analyzers, and all
> sorts of more modern (and more accurate) ways to measure radio
> frequencies. But the heterodyne meters still do what they have always
> done. That includes "good enough" frequency measurement and a signal
> generator function all in one small box. And they are cool.
> 
> 73,
> 
> Bill  KU8H
> 

Robert & Susan Downs - Houston
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MVPA 9480