[MRCA] URM-25( ) dial lamps

D. Platt jeepp at comcast.net
Sat May 17 14:51:10 EDT 2014


I was re-doing a nice URM-25D and had to replace the two dial lamps.  
They're GE special lamps and I have no idea, whatever, why that type 
bulb was used.  But the design calls for them and there you are.  That 
said, for grins, I looked them up on line.  I found two prominent 
suppliers had them.  One is Don's and the other was Atlantalightbulbs.  
Don's wanted an exorbitant price but Atlanta wanted but $4.50 each.  So, 
if anyone needs them, they are available for a reasonable (sic) price.  
Note, however, that the GE type 323 lamp is listed elsewhere but the 
base is NOT what's used on the URM-25!  Also, if anyone has one of those 
Chinese 50 MHz pack sets, they use a /similar/ base bulb, to found in 
the spares package.  Finally, I have mounted type 328 miniature aviation 
bulbs in URM-25 units by bypassing the dropping resistor.

Just some thoughts.....

Jeep - K3HVG
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