[Milsurplus] URM-25D vs. URM-25F

[WA5CAB at cs.com]

Mahlon,

Sorry but the AN/URM-25F is the most cheaply built variant . The Navy gave 
the contract to someone new and told them that cost was the primary 
consideration. Like the BC-348-JNQ. Lot of corner cutting and little mechanical stability. 
The base through D were pretty much straight progressions. The best models 
are the late D's (G, H and J). That's my personal opinion (and you know what 
that's like, everyone has one). But I formed the opinion 20-30 years ago while on 
active service and have seen no reason in recent decades to revise it. The F 
certainly has not improved with age. If you have a Seaman deuce handy to bang 
rapidly on the work bench, you can use it as an FM alignment generator.

In a message dated 6/10/2004 7:55:02 PM Central Daylight Time, 
mahlonhaunschild at cox.net writes: 
> The other day on this list (I think it was on this list) someone allowed 
> as how he thought the URM-25F was better than its older URM-25D sibling. 
> Could you please summarize your thoughts on this for us? I own a 
> URM-25F, but I was unaware that there were any significant functional or 
> performance differences between the two.
> 
> Any "gotchas" or things to look our for in a URM-25F? Like replace all 
> paper capacitors (I don't think it has any, actually...)?
> 


Robert Downs - Houston
<http://www.wa5cab.com> (Web Store)
<wa5cab at cs.com> (Primary email)
<wa5cab at houston.rr.com> (Backup email)