[R-390] R-390A Restoration Progress (or lack of)

[Richard W. Solomon]

I checked the Electrlytics when I replaced the not so wet any more
Tantalum. They looked good on the ESR Meter. I tested all the tubes 
and they checked OK.

One thing someone mentioned I should look into. The Power Strip line
is "fused" by a GFI breaker. So are all the outlets in the garage.

I'll bypass the filter and see what happens.

73, Dick, W1KSZ

-----Original Message-----
>From: rbethman <rbethman at comcast.net>
>Sent: Dec 12, 2008 7:44 PM
>To: r-390 at mailman.qth.net
>Cc: "Richard W. Solomon" <w1ksz at earthlink.net>
>Subject: Re: [R-390] R-390A Restoration Progress (or lack of)
>
>Dick,
>
>I know of NO line filters being "available".  C103 is either right next 
>to the line filter OR is the line filter.
>
>You either HAVE to bypass it OR re-build it.
>
>Unfortunately this IS a reality of life.  The OTHER possible issue is 
>that 1) the power micro-switch is STUCK closed.  2) IF 1 is true - then 
>the two CAP cans on the Audio Deck could ALSO be bad.
>
>Check the circuit board under the Audio Module.  Sometimes an audio tube 
>goes bad AND takes out one of the larger carbon composition resistors.
>
>My "best" guesses.
>
>Bob - N0DGN
>
>Richard W. Solomon wrote:
>> I got to the point of putting AC to it. That's after replacing
>> the "IF Killer" cap and the "Audio Leaking" cap. Tested all the
>> tubes in a TV-7, replaced 3 of them. Cleaned off the 1" of crud
>> from 10 years storage in the barn.
>>
>> So, now lets apply power or not !! As soon as I plug it in the
>> breaker on the strip pops. (yes, the radio is in the off position
>> when I do this). I assume it must be the Line Filter so tomorrow
>> I shall bypass it and see what happens.
>>
>> There is also C103. Not sure where in the circuit it lies.
>>
>> Are replacement Line Filters available ? And no, I am not in the
>> mood to rebuild it !!
>>
>> 73, Dick, W1KSZ
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>>   
>
>-- 
>Bob - NØDGN
>