[R-390] Ideas for Y2k companions (and an off-topic query on RA-1772)

Clemens S.Ostergaard clemens at it.dk
Fri Dec 16 06:54:19 EST 2005




This is one group that you never tire of!   - ( "If you are tired of the
R-390 list, you are tired of life" )



Someone mentioned it already, but in case it got lost in the blizzard of
suggestions and mails: 

It would be a great help to have access to the TM-4000 manual on
troubleshooting, which is based on the R-390A   

Later it got called " Troubleshoot the radio receiver 390A/URR to the
faulty component"  Its STP nr is STP 34-33T14-SM-TG 867-816-1008 

There is also, with end number 1009   "Align the radio receiver R390A/URR"  

How useful it would be to have these two in digital form.


Now for the off-topic query. A Racal RA1772 just found its way into the
shack. It has a number of fine 1.4 mhz filters, but the AM one is as wide
as 8khz. 
Does anyone have, or can anyone direct me towards, such a filter that I
might buy?  Many receivers have these, Skanti 5001, R & S EK070, Redifon
R550, Plessey 2250B and 2282A , as well as a number of Eddystone receivers.
And of course the American and Canadian versions of the 1772.

Sorry about this non-hollow state question, but it is certainly a
boat-anchor, a fine receiver and perhaps the ultimate achieved before the
transition to microcontrolled receivers, ---- excepting of course R390 and
R390A. 



All the best, and seasons greetings, 


Clemens S.Ostergaard





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