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RCA 15X - Printable Version

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RCA 15X - vecher - 01-31-2019

All, Just started on this RCA 15X.. Outside looks pretty good..

[Image: https://farm5.staticflickr.com/4853/39979745523_e95601bce5_b.jpg]


Inside looks OK...  but noticed looks like most if not all caps have been replaced.. Values do not match schematic..

[Image: https://farm5.staticflickr.com/4915/39979746163_390d23aa69_b.jpg]

Good news is all coils, output Transformer and IF's check out fine..

Other problem is the schematic I have is not that great..  Values are hard to read..

So on to Recapping and checking resistors..

Skip

RE: RCA 15X - Radioroslyn - 01-31-2019

Hi Skip
HB!
 https://www.americanradiohistory.com/ARCHIVE-RCA/RCA-Service/RCA-Service-Data-1938-1942-C.pdf
Go to pg 358

RE: RCA 15X - vecher - 02-01-2019

Thanks Terry..I will take a look..

Skip

RE: RCA 15X - Arran - 02-01-2019

Skip;
  It looks like someone recapped your radio back in the 1960s, that was when Sprague caps used those red and yellow labels. Believe it or not they may still be quite viable, they were starting to switch over to using either plastic film as a dielectric, or a combination of plastic film and paper by then. A guitar amp that a friend of mine has is full of caps like these, unfortunately the resistors are badly drifted off spec so the amp still needs an overahaul. However if the values are just plain wrong, such as using a .05 in place of a .01, I would go back to the factory specs.
Regards
Arran

RE: RCA 15X - vecher - 02-01-2019

Arran, Ok Thanks I will recap anyway.. Looks like some were not even close.. Probably only values they had at the time..

I think at lease one of the IF's was replaced as it matches the 2nd If used in a 36X or the 2nd production run of the 15X..

Has 6 leads instead of 4...

Skip

RE: RCA 15X - vecher - 02-03-2019

Well, Finally Recapped.. Had to replace quite a few Resistors too.

So on to power up.. Need to hookup the Loop antenna first.. Almost forgot..

Skip

RE: RCA 15X - David - 02-03-2019

   
Sorry I am late to the party.

RE: RCA 15X - vecher - 02-03-2019

Thats OK Thanks This helps too..

Skip

RE: RCA 15X - vecher - 02-04-2019

Ok powered up.. at 120 Volts reads 280 MA So all is good.. Plays well across the band.. Very sensitive little radio..

Now on to case a little GO-JO and polish and this should clean up nicely..

Skip

RE: RCA 15X - Paul Philco322 - 02-04-2019

Those are nice little sets, have a real classic look to them. You will have a nice one.

Paul

RE: RCA 15X - vecher - 02-06-2019

Thanks

Here is radio with just a little Go-Jo cleaning Not to bad..


[Image: https://farm8.staticflickr.com/7872/40041367873_8c86d1f2de_b.jpg]

Skip

RE: RCA 15X - Ron Ramirez - 02-06-2019

Fine job. Icon_thumbup

RE: RCA 15X - vecher - 02-06-2019

Thanks Ron...

Skip..

RE: RCA 15X - Paul Philco322 - 02-06-2019

I like the Red Dot with the line dial indicator. 

Paul