1949? Motorola 10VT24R, TS-14B chassis

[Phil Nelson]

So, it worked (full raster) when you put it away, and then the vertical collapsed when you brought it out and tried it again?

I'd look for a loose or broken connection somewhere. Have you tried wiggling the tubes? Did you ever clean the tube pins & sockets? Did you clean controls (such as vertical hold)? Is it possible that a blob of solder or a snipped wire stub fell into the wrong place and made a short circuit? Eliminate simple/obvious causes like that before you start chasing more exotic issues.

I would not "shotgun" all of the new caps that you installed. Your TV was mostly working before. It's possible for a new part to fail, but that's far from a common scenario.

I would also put back the resistor that you eliminated. Parts are there for a reason.

If your service manual includes a voltage chart, how about checking the voltages on the vertical tubes? Same deal if the manual has a resistance chart.

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