[Hallicrafters] urm-25d cover parts

[Jim Brannigan]

Good point!!
My original URM-25 coax jumpers are stiff and the dialectric is discolored.

See http://site298.webhost4life.com/barryhauser/archives/HSN-TestEQ.pdf for 
the Dallas Langford URM-25 rebuild notes.  (scroll to the bottom)

Jim


>
>
> -- "Jack Schrader" <w1jhs at midmaine.com> wrote:
>
> I figure there must be a bunch of 25D's that are not used anymore but the 
> accessories are still good.
>
>
> Hi Jack ...
>
> Not exactly.  The accessories disappeared from many of them before they 
> were surplussed out or later on.  It was probably more convenient to store 
> them in a toolbox or elsewhere to use with other equipment.  You may be 
> able to get some from Fair Radio - don't know if they have much of that 
> left.
>
> They're fairly easy to replicate and you probably only need one or two of 
> them.  Basically a metal box with appropriate connectors and a few 
> components.  Several adapters, BNC jumpers, etc.
>
> I'm told that the components in the originals probably need replacing 
> anyway.  Much of this involves impedance matching and the resistors have 
> likely aged upward.  The schematics and parts values for most if not all 
> the accessories are in the URM-25 manuals.  You might be better off 
> rolling your own.
>
> Barry
>
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