Starting work on the Sylvania 7140M

[Eric H]

I did a little more in the wee hours.

I took it back apart and reversed the Width coil, I don't think that's why I had the drive lines though.
I found a jumper wire between the lugs of the Flyback that had come loose when I soldered the HV cap in, it was nearly touching so I didn't notice it.

Put it all back together and all is nearly well, I'm still getting a little fold over creeping in on the left side after a while but at least it's not smearing across the entire face of the tube now, I need to rerun the Horiz setup again too.

I'll order some new Mica caps for the sweep section and just replace them all, there's not very many. Also I don't know if I even used the right value, I just clipped the only one that was easy to get from the parts chassis and it must have been close because the Horiz locked right in.

Oh, and i probably jumped the gun on buying some new HV rectifiers, 12kv and plenty bright, doesn't hurt to have some spares of those oddballs though.

Pictures, I'm sure your all familiar with these characters:

[Eric H]

And one more thing, what was Sylvania thinking putting the Contrast control on the rear apron next to the Vert H and Vert L controls?

I mean sure it has AGC so the contrast is fairly constant but it would be nice if it was easily adjustable.

As it is the Contrast has little effect on the picture, the AGC on the other hand will go from blank to black.

Oh yeah, I found out that lever I was asking about is the switch for the dial light.