[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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