Quote:
Originally Posted by TVBeeGee
Any advice on how to SAFELY discharge the ultor on a RCA CTC-5 with the metal 21AXP22 CRT? I have not done this type before. Looks like the connection to the tube is buried behind the insulator surrounding the entire tube and the other end of the lead connects directly to a chassis connector at the high voltage cage. Unplugging the charged cable from the chassis seems like a really bad idea (shocking!), so can this be done by a method that avoids electrocution?
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I don't know if the 5 is like the 9 or 11, but the first second anode shock I got was at the hands of one of these beasties.
My dad handed me a HV rectifier and asked me to change it in a 9 or 11. I rocked the tube but it wouldn't budge out of the socket. I figured it had the two alligator teeth spring locks so I slide my hand down around the 3A3 to release the springs and got whacked. I pulled my hand out of the cage opening and scalloped the back of my wrist and hand but good. Turns out the 3A3 socket was mounted on a metal base (corona ring?) directly connected to the second anode.
The point (other than rooting around for sympathy) is that if the CTC5 is like the later versions, simply sliding a screwdriver down the side of the rectifier while keeping contact with the cage will discharge it right at the rectifier socket base.
Take a flashlight and see if the rectifier socket is a metal base.
John