History of the British Radio Valve to 1940.
MMA International Ltd., 1992.
A historical description with glossary and data for a lot of British valves..
ISBN 0-9520684-0-0
| History of the British Radio Valve to 1940. | |
|
Keith R. Thrower History of the British Radio Valve to 1940. MMA International Ltd., 1992. A historical description with glossary and data for a lot of British valves.. ISBN 0-9520684-0-0 |
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