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1949 motorola table top

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#11

03-09-2015, 08:33 PM

bandersen

RCA 741PCS

Join Date: Mar 2009

Location: Chicago, IL

Posts: 8,822

From what I've read brighteners don't really help electrostatic CRTs.

Did you check these voltages on the CRT ?

pin 2 (cathode) - 0 -220 volts (brightness control)
pin 5 (A1) - 1,600 - 2,400
pin 9 (A2) - 5,000 - 6,000

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