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Old 01-08-2017, 10:40 AM
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Ampico-kid Ampico-kid is offline
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Location: Harpers Ferry, WV
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Hi Phil. In answer to your question #1....My Clifton had rock solid vertical locking and no vertical jitter at all after I recapped it. The vertical jitter modification had not been done on my RA-102 chassis, it was still the original configuration.



Quote:
Originally Posted by Phil Nelson View Post
I ended up getting a Stancor A-8124 transformer from Moyer Electronics.



Replacing the bad old transformer fixed the vertical problem with the peculiar slanting lines and inability to lock. However, there is a faint vertical jitter that won't go away with any adjustment.

In the "Rider Receiver Trouble Cures" book at the ETF website, I see the following modification for curing vertical jitter in the RA-102:





(The tube shown in that diagram is V16, the same tube shown in the schematic posted earlier.)

A couple of quick questions before I start reworking things on the transformer that I just installed:

1. Has any other RA-102 owner done this, and would you recommend it?

2. What's going on with this mod?

Regards,

Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html
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