[R-390] Another new member

Flowertime01 at wmconnect.com Flowertime01 at wmconnect.com
Mon Aug 20 19:16:59 EDT 2007


Jim,

Welcome to the reflector.

Wander over to the site below.
Use a good band width from, homework the library and you can down load a copy 
of the original R390 TM for your receiver.  The Y2K manual covers the R390/A 
receiver The R390/A TM and Y2K manuals are good reads but you will want the 
R390 TM for your receiver.

Watch the mail, there are reproduction machined Knobs available. Original KC 
and MC knobs are next to unobtainable. Nice that you have original meters.

Front panel reproduction plates are also available.


Read the TM once from cover to cover once you get a copy.
Check all the tubes once in a tube tester to weed out the shorts and opens 
that happen from moving these old receivers from place to place.
Check if the 26Z5's have been replaced with diodes. A popular mod.
Check the 6082 regulator tubes.
There are several good ideas to get some fans on those hot tubes.
Watch the mail for web pages and pictures.
Check the plug in filter caps. These get leaky and will provide power hum.

Check the IF deck (easy) to see if the big diameter plastic caps have been 
changed out. These are failing from old age. There are also some under the RF 
deck that need changing. But it is easy to look at the IF deck to see if these 
parts have been replaced.

Once you have all the tubes lit, read through your manual, and have done a 
front panel operational inspection, you will have a clue as to what does not 
work.

Post some mail here with the problems you find. You will get plenty of help 
to get the receiver working.

Please tell us what you find as you go. Its history and many of us readers 
learn a lot about how the receivers are holding up from the mail that gets 
posted.

Welcome

Roger L. Ruszkowski AI4NI

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