Thread: New enthusiast
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Old 02-12-2016, 01:03 PM
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Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
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There are a few possibilities regarding the heater continuity. You could be measuring the wrong pins....The heater wires to the socket are usually brown and black, and on 50's CRTs with the common 10BP4 style base IIRC the heater is always the two pins nearest the key on the bakelite center shaft.
There could be dirt or corrosion on the pins preventing a good reading (use the sharp tips of the test leads to scrape through it if that is the case).
The last good possibility is that the solder on the base pins is bad and needs to be re-flowed with a soldering iron.
If all those fail to give you a reading, then the CRT is probably bad.

You can also try light testing the CRT heater....As in get a 6V lantern battery or some such and connect it to the CRT heater and see if it lights.
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