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Old 05-09-2017, 07:24 PM
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Phil Nelson Phil Nelson is offline
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After replacing the factory-installed electrolytic and paper caps on my Emerson 609, I'm looking at this big .25-mfd paper cap, evidently added by some sloppy repairman:



The cap isn't shown in either Riders or Sams. It's hard to trace things in this messy chassis full of long, wandering leads. But as near as I can make out, the guy wired this new cap in parallel with the Horizontal Size adjuster coil (L-8 in Riders):



Any ideas as to why someone would add this? Tacking stuff onto a width coil suggests an attempt to get more (or less?) width, at first glance . . . .

I normally remove mods and restore things to match the schematic, especially messy work like this, on the theory that the repairman was attempting a quick fix for some symptom that will be cured by the time I'm done recapping, etc. But if someone thinks this is a great improvement, I suppose I could try a new .25 cap there.

You can read the full schematic here:

http://antiqueradio.org/art/Emerson6...maticSmall.jpg

Regards,

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