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Forums
4hv.org :: Forums :: General Science and Electronics
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CRT pinout?

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currentkills91
Wed Apr 04 2012, 11:14PM
currentkills91 Registered Member #3831 Joined: Thu Apr 14 2011, 02:54PM
Location:
Posts: 265
 		Yeah I've done that before, but this time I want to build my own drivers for it. For the experience and knowledge :) And unfortunately I ruined the driver boards for the tube when I took it apart x.x
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radiotech
Thu Apr 05 2012, 03:20AM
radiotech Registered Member #2463 Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
 		The 40HB4 appears in the test listings for the Sencore CR70 CRT tester. Pinout & Settings:

F1&C 4
F2 5
2.8 Volts filament voltage---directly heated Cathode pin 4
Negative Bias - 36 Volts
G1 3
G2 6

Since the CR-70 determines the emission of a CRT, no data can be gleaned from the
settings, because tests involve standardization of the particular tube manually, to show good
or bad based on Sencore's test method. No EHT connection is used.
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currentkills91
Thu Apr 05 2012, 04:13AM
currentkills91 Registered Member #3831 Joined: Thu Apr 14 2011, 02:54PM
Location:
Posts: 265
 		AWESOME! Haha thank you so much!
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