[Hallicrafters] urm-25d cover parts

[George KB2Z]

Jack,
They sometimes show up on the UMMMMMM site. I was lucky when I bought my 
URM/25D
It is a J model and had all the original parts except the manual. Its 
been several years, but the shipping cost more than the instrument. 
Surplus Sales, or Fair,  may have some from different models of sig. 
gen. They might not fit your cover slots but would be the same electrically
Good luck, George KB2Z.


Barry H wrote:
> -- "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.
>
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> Hi Jack ...
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> 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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