Old Muntz TV for sale Locally to me, Should I pick it up?

[jr_tech]

Originally Posted by jr_tech

There is also a possibility that the sagging/blooming high voltage slump is caused by downstream problems such as a weak horizontal output or damper tube, or perhaps the horizontal frequency being way off. In such a situation, a good strong 1B3 might worsen the symptoms, while a weak one might act as a current limiter.

I would not pitch any 1B3s biased on performance in this semi-working set.

jr

Since replacing the horizontal output tube restored HV in this recent problem, I still think that is an area of concern.

jr

[Kevin Kuehn]

Originally Posted by jr_tech

Since replacing the horizontal output tube restored HV in this recent problem, I still think that is an area of concern.

jr

The horizontal frequency could be right on the edge of not wanting to resonant. Pretty common to be a little off after a full recap.

[vortalexfan]

Originally Posted by jr_tech

Since replacing the horizontal output tube restored HV in this recent problem, I still think that is an area of concern.

jr

Well the horizontal output tube that's in the TV now that brought back the High Voltage is the Original Meck Branded 6BG6G tube and the one that I had in there when I lost my high voltage was a NOS Tung-Sol 6BG6GA tube.

The horizontal Oscillator Tube which is a 6SN7GT which is an older RCA Replacement from the late 1950s that tests near the bottom of the good zone of my Tube Tester may also be causing problems as well, which I have a NOS Tung-Sol 6SN7GTB tube but the middle keyway pin is busted on it so I don't know if I can install it correctly for it to work in my set.

As for the horizontal frequency it's about as centered as it's going to get.

[vortalexfan]

Here's a picture of what the picture looks like now.

See picture below.

[old_coot88]

Originally Posted by vortalexfan

Here's a picture of what the picture looks like now.

Izzat pic with the doorknob in circuit?

[vortalexfan]

Originally Posted by old_coot88

Izzat with the doorknob in circuit?

Yes. And I still haven't replaced the 1 meg 1 watt resistor in line with the high voltage anode yet, as I'm still waiting for that part to arrive in the mail.

[Kevin Kuehn]

Wow, whether this TV is working or doesn't is making my head spin. That's a respectable picture you have there right now, although it could be a tad brighter. Where was the brightness set for that picture?

[Kevin Kuehn]

BTW my sams says that HV cap is rated 15,000v. I think we need a different informer.

[vortalexfan]

Originally Posted by Kevin Kuehn

BTW my sams says that HV cap is rated 15,000v. I think we need a different informer.

Mine says 5,000 Volts I think what you're reading as a 1 in front of the 5 is actually the double cross symbol that references to the double cross symbol at the bottom of the capacitor parts list that said that some models use a 210 MMF capacitor in this position.

As for the brightness control it's in the middle or thereabouts to get the picture where I have it now.

[Kevin Kuehn]

Originally Posted by vortalexfan

Mine says 5,000 Volts I think what you're reading as a 1 in front of the 5 is actually the double cross symbol that references to the double cross symbol at the bottom of the capacitor parts list that said that some models use a 210 MMF capacitor in this position.

Are we talking about C80? It sure looks like 15k to me.