RCA 8PCS41 from CL update

[Eric H]

Originally Posted by Einar72

I talked to an old-timer TV tech in Tacoma about these RCA-type sets about 20 years ago. He said his hair fell out after working on one!

LOL, he probably pulled his hair out after working on one of these.
I intend to put the CRT in the barrel before I do any more serious work on it, I just had it on for a couple minutes to see if it would run. I put the lid on the HV cage at least and kept my distance from the CRT.

[Bill Cahill]

These sets have no protection circuits to shut them down.
I suspect that tube socket is shot.RCA used some very cheap sockets.
You could have an hk short in pix. tube. Check your voltages from video amp to brightness control, and, with socket removed, voltages on cathode, and, first grid pins. See if brightness control varies the B+at that pin.
You should see variation.
If the picture tube is bad, the good news is they are fairly common.
Bill Cahill
5TP4

[Eric H]

Originally Posted by Bill Cahill

These sets have no protection circuits to shut them down.

If the picture tube is bad, the good news is they are fairly common.
Bill Cahill
5TP4

Bill, the CRT tested good, no shorts, probably something in the circuit.

I thought it had protection because it would operate for a few seconds with a narrow line and then shut down, it did this several times, possibly it just didn't have enough B+ to keep running?

[cwmoser]

Originally Posted by Eric H

LOL, he probably pulled his hair out after working on one of these.
I intend to put the CRT in the barrel before I do any more serious work on it, I just had it on for a couple minutes to see if it would run. I put the lid on the HV cage at least and kept my distance from the CRT.

I'm curious because I have a Philco 48-2500, but where are the
X-rays emitted? From the face of the CRT or all around?

Carl