[R-390] Cobblers Childern Now Have Shoes and a Saturday SWBC Target

chuck.rippel at cox.net chuck.rippel at cox.net
Sat Feb 15 21:17:10 EST 2014


Checked the radio and found that I only had 3.65V at the rear panel RF 
jumper on a strong AM station so knew something was up.  The resistance 
from TB3 and TB4 to ground were in spec so on a whim, pulled the IF deck 
and installed the known good one I use in the shop.  The problem was not 
present using the swapped IF deck.  Glad it wasn't in the RF deck.

Plate voltage on the AGC amp was good, the tuneable coil had not opened 
up so changed C519 and the other .05 AGC line bypass cap near the input 
of the IF deck.  Bingo, the proper AGC voltage was back.  Problem 
solved.  Checked a few of the alignments and after at least 8-10 years 
since I touched this radio last, they ere all perfect.   I had C-519 
written in my notes as a previous problem child found in a couple other 
radios.

Tonight, there will be pirate radio stations on the 43 meter band. 
Right now, I'm listening to "Radio Free, Whatever" on 6925.0   Keep a 
watch there along with 6930 and 6940.  Europirates have been heard 
around 6290 - 6330.  Whats interesting, these guys run only 10-20 watts 
and the probramming can be.... "diverse."

--
Chuck Rippel

"Never miss the chance to shut up."
- Robert Gates


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