[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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