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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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19th Feb 2007, 8:26 pm | #1 |
Retired Dormant Member
Join Date: Apr 2005
Location: Racine Wisconsin USA
Posts: 14
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GEC 4081A CRT Pinout?
Can anyone post pin out and data on a gec 4081?
Thanks |
3rd Mar 2007, 8:12 am | #2 |
Dekatron
Join Date: Sep 2003
Location: Near Swindon, North Wiltshire, UK.
Posts: 3,595
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Re: GEC 4081A CRT Pinout?
Hi,
GEC valve manual, part 1, Aug 1957, edition 2 states: 4081 and 4081A use a B9 base, with the following pinout: 1 = X1 2 = Y1 3 = A2 4 = H, K 5 = H 6 = G 7 = A1,3 8 = Y2 9 = X2 The indexing pip is between pins 4 & 5. Looks like an oscilloscope tube, with a screen diameter of 2.75", green phosphor, 4V @ 0.8V heater, 80 - 200V A1 volts, 400 - 800 A3 volts, -30V max G1 cut-off (max), deflection sensitivity (mm/V) X = 150/VA2; Y = 150/VA2. Hope this helps. Regards, Dazzlevision |