1960s vintage 9" GE B & W Portable TV has no Picture

[Captainclock]

Originally Posted by Eric H

The HV goes into the base of that tube. The pin is off by itself if I recall right.

What I mean is that this picture tube doesn't have the 2nd anode suction cup thingy that most CRT TVs have is what I mean.

Anyways This TV has a 4 MFD 50 Volt Electrolytic Capacitor in the circuit and I was wondering if a 6.8 MFD 50 Volt electrolytic capacitor would be a good replacement for that capacitor, I'm curious because I don't have any 4.7 MFD 50 Volt Electrolytics in my capacitor stash and the only 4.7 MFD 50 Volt Electrolytic capacitor that Radio Shack has is an axial leaded one which I wouldn't think that using an axial leaded Electrolytic capacitor with one side exposed would be very safe without having some sort of shrink wraping over it so that it doesn't arc against something else in the TV.

[Eric H]

Originally Posted by Captainclock

What I mean is that this picture tube doesn't have the 2nd anode suction cup thingy that most CRT TVs have is what I mean.

I realize that, I was just pointing out it doesn't have one on the side of the tube because they ran the High Voltage through a pin on the base of the tube instead.

The 6.8Mf cap is probably close enough, it's more than 50% over but depending on what it's for it probably wont matter much.

[Captainclock]

Originally Posted by Eric H

I realize that, I was just pointing out it doesn't have one on the side of the tube because they ran the High Voltage through a pin on the base of the tube instead.

The 6.8Mf cap is probably close enough, it's more than 50% over but depending on what it's for it probably wont matter much.

That's why it would be nice to have a service manual for this TV, but I don't want to pay $20 for a Sam's Photofact for this thing because that's kind of rediculous to pay that much for a simple 4 sheet document that's over 50 years old and that's probably a very poor scan at that.

Also you never answered my previously asked question concerning where to start first when recapping this TV because I just ordered the caps for this TV but I would like to know where to start in the chain of things (which caps are for the vertical out stage where I'm having the main problems right now) and where are the HV/Horizontal out stage caps at?

Also the really weird valued .0039 MFD 400 Volt capacitor I had ordered a .0047 MFD capacitor to replace it, is that ok? I'm just wondering because there were no other values that came close to that funky valued cap at AES except the .0047 MFD.