[R-390] AN/URM-25D Repair Info - More

David C. Hallam dhallam at knology.net
Tue Mar 6 11:37:30 EST 2012


The Dallas Lankford information used to be available at this site 
http://www.kongsfjord.no/dl/dl.htm but it doesn't seem to be active any 
more.  Too bad, there was valuable information there.  Maybe someone 
knows if it has moved elsewhere.

David
KW4DH

On 3/6/2012 2:04 AM, Jim Hill wrote:
>    I forgot to cc: the following email to the group when answering
> Thomas Chirhart
>
> Tom:
> If you decide to refurbish your AN/URM-25D, there's an excellent
> article in the Hollow State Newsletter, written by Dallas
> Lankford.  The generator is inconveniently small for easy repairs,
> and the article guides you through refurbishment, avoiding many
> pitfalls.  I worked on mine, replacing almost all capacitors (because
> they were bad, not a shotgun replacement), most resistors, and the
> germanium diodes.
>
> The Hollow State News stopped publication around 2002 as the Internet
> became more popular, and I think Dallas is no longer active.  He
> wrote many interesting articles in the past, and I'm guessing he was
> involved in refurbishing AN/URM25-D's used at an University in Texas.
>
> Maybe someone has the article on-line.  If not, and if you are
> interested, I'll scan mine.
> Jim
>
> Does anyone know of an Internet source with this info.  It would save
> me scanning time.  My scanner doesn't have a feeder.
>
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