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Old 10-20-2019, 06:31 PM
CaryLee's Avatar
CaryLee CaryLee is offline
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Join Date: Dec 2013
Location: Farmington, New Mexico
Posts: 108
Howdy!! DuMont failure it seems....

It's been a while since I was on. Several years ago, I chronicled the restoration of my grandparents 1950 DuMont Ardmore here in the forums.

I've watched that television off and on for years now, and eventually, the digital converter failed. I recently purchased a new one, and hooked it up today. I had some issues with the connector on the back of the CRT. A couple wires needed to be soldered....

First, the brightness control wouldn't work. I found a wire had come off the connector. Resoldered it, and everything worked fine.

Then, another wire came off the connector. When I was was removing the connector from the back of the CRT, disaster struck! The entire bakelite connector came off the neck of the CRT! The wires remained intact in the glass of the neck of the tube, and I was able to reattach the bakelite connector. Each wire lined up with the pins on the connector, and I was able to resolder them, at least so it seemed.

I soldered the wire that came off the connector back onto it.

However, currently, it appears something very bad has happened. I have sound. The filament in the neck of the CRT is glowing just like always. However, the screen is currently dark. There is no picture.

It's hard for me to believe the CRT could have failed so suddenly. It was working a couple hours ago. Now I have no picture.

The set uses a 19ap4 CRT. I know those aren't easy to come by.

Any thoughts?
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