TV Treasures - Videokarma.org TV - Video

John Marinello · #1 09-19-2007, 11:08 PM

Quote:

Originally Posted by Eric H

http://cgi.ebay.com/1950s-Motorola-T...QQcmdZViewItem

I tested the 19AP4B in that Moto(after removing the brightener) and the needle didn't budge off of zero emission... Bummer drag.

John Marinello · #2 09-19-2007, 11:52 PM

http://milwaukee.craigslist.org/clt/420570070.html

Tubejunke · #3 09-20-2007, 01:01 AM

Quote:

Originally Posted by John Marinello

I tested the 19AP4B in that Moto(after removing the brightener) and the needle didn't budge off of zero emission... Bummer drag.

Did you move the test plug around on the pins to make sure there wasnt an intermittent connection? I run into this alot. Anytime I test a tube that has a glowing heater and ZERO emission I check (wiggle) things out. CRT's are the worst because the old ones like we deal with have a nasty habbit of the plug's epoxy/adhesive giving out and the plug is free to move around usually marginal pin soldering. In other words intermittent connection.

Also it is possible for the tester to have a problem. I only say this because if I were to test a crt with my old Sylvania I would get ZERO emission with a lit heater. I was fooled until I checked other tubes and found out my adapter harness has some stupid resistor of unknown value that has cracked in two. Oh well, maybe one day I'll find a schematic for the tester, or better yet a spare harness.

Ya know, its gettin bad when your fixin your fixin stuff