RCA B&W tv schematic

[Eric H]

Hi John, that will be an 8-PT-703* or 8-PT-701*depending on the color and style

There are a couple different chassis used in these sets, I have a basic schematic for one of them uploaded here:

Right click and "save as"

http://www.vintagetvsets.com/schem/kcs100.pdf

I think the difference is in the vertical circuit so check and see if this matches yours.

You can DL the owners manual also: http://www.vintagetvsets.com/schem/personalportable.pdf

[andrefranc]

Thanks to Eric for the schematic. My set uses a 6CG7 in the vertical and also for the horizontal osc. I don't have one of these tubes in stock but when I swapped them I still had the horizontal way off frequency. Any suggestions as to what is the likely cause? Thanks in advance. John Graber