[r-390] Critical Issue

[David Medley]

I am presently working on an R-391, a very old one. The audio deck was original without mods. The following is an exerpt of a message I just sent the owner. Anyone who owns an R-390 or R-391 should check this out. This damage can be horrific.
 
"The radio is disassembled completely. I have finished overhauling the audio/VR deck which is the most time consuming part. This one is very old and did not have any of the later mods. I have brought it up to date and replaced all critical parts. One of the bad things with these early assemblies is the 8uf cap in the audio section. This thing leaks acid over time and I have seen cases where complete replacement of the circuit board was needed and extensive cleanup of the chassis as well. If you have any other R-390/391 radios you should check this out. The mod is simple and eliminates this cap. In this one the cap had not started to leak so no damage was done."
 
Please note this applies to R-390/391 radios although I believe there may be a similar problem with early R-390A radios.
 
Dave
 
P.S. If anyone has this problem and needs help please let me know.
 
.



Sincerely
David Medley
davidmed82@yahoo.com
If you have a minute please check out:
http://www.adminder.com/c.cgi?davidmed&123
You might even make some money!

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