[R-390] USM 25 // Question

[Bob Camp]

Hi,

I have seen a variety of gizmos in the cover of the USM 25 series
generators. They more or less fall into three categories:

1) Connector adapters - stuff to go to BNC, N, TNC. Things you probably
already have.

2) Cables with pads on them - hmmm, got a cable, got a 20db pad ....

3) Radio adapters - radio specific matching networks to correctly put a
signal into a given radio.

The first two categories are no big loss. The stuff you have already is just
as good as what came with the generator. The third category only matters
*if* you have the radio in question. One example is an R-390A and the
specific adapter to drive it. Almost inevitably the "fully stocked" USM-25
always has every adapter except the one you need.

Sounds like you got a good deal.

    Enjoy!

        Bob Camp
        KB8TQ


----- Original Message -----
From: "shadow" <shadow@gilroy.com>
To: <r-390@mailman.qth.net>
Sent: Saturday, February 09, 2002 1:08 PM
Subject: [R-390] USM 25 // Question


> Hello from Silicon Valley..
>
> I was rooming around the flea market friday morning hunting for Audio
> and RF Gear. I found a USM 25F  / SG 103 generator with the cover.
> Not matching numbers, but I'm no collector.
> The cover did not have any accessories at all. ZERO.
>
> When I arrived back at the Lab. I just had to look inside. Just
> beautiful inside. If it has been serviced and I'm sure it has been many
> times for its age. It just perfect inside. There is not even a scuff on
> any of the screws. Someone knew what they were doing.
> Defiantly more beautiful on the inside then outside.
>
> So....  I powered it up with a varaic and it looks to be working unit,
> very correctly. Hard to believe something that old can work so well, but
> that why the are called precision test equipment.
>
> I need to know if any of the accessories even necessary for general use?
>
> If so...  Then I will look at more flea markets or build them.
> I just need to know what they are.
>
> I know the USM 25's  are popular with the group. Seems like a good place
> to as a question.
>
> I have had lots of military stuff in my life, just not may signal
> generators.
>
> The best part is the it came from a seller I knew. I always said hello
> and looked at his booth, even when I knew there was nothing I wanted.
> He chased me down as I walked by, pulled me to has booth.
> Just pointed and said...  "This is yours, take it with you and make sure
> you do"
>
> Sometime.... Just being nice to people has it rewards..
>
> Thanks Guys..  For any information you can supply... Will be helpful.
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Enjoy the Second Amendment....
>          But a Machine Gun....
>
>
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