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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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25th Nov 2014, 11:13 pm | #21 |
Dekatron
Join Date: Mar 2008
Location: St. Frajou, l'Isle en Dodon, Haute Garonne, France.(Previously: Ellesmere Port, Cheshire, UK.)
Posts: 3,177
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Re: The B4 valve base. Now 100 years old?
Hi,
Bush were rather partial to the B4 plug & socket. I had a TV43 which had two. One from the RF chassis to the main chassis. And another for the scan coils. Cheers, Pete.
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5th Dec 2014, 2:30 am | #22 |
Heptode
Join Date: Dec 2014
Location: Limerick, Ireland.
Posts: 901
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Re: The B4 valve base. Now 100 years old?
Isn't the AD3, B103, B130, B136 and B137 Battery packs (1.5V & 90V) using the B4 base, with of course the LT on the pins normally for filament, +HT on what was often Anode and HT- opposite?
I think they last made about 1968? |