Catalogue
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Mullard Radio Valve Type EF37A, by Mullard, England, Mid 20th Century
Inventory Number: 69132
Date: Mid 20th Century
Maker Details: Signed by Mullard.
Inscription: "Mullard / EF 37A / A BVA [LOGO] A / BRITISH MADE" printed on painted exterior surface of bulb. "1284 / 1 G 2" stamped on exterior surface of base. "EF37A / MADE IN ENGLAND" printed on bottom exterior surface of carton.
Size: 95 mm in overall length (including top cap and base pins)
Materials: Glass, steel, plastic?, assorted metals.
Other Given Number(s): Christie's 216.
Notes:
High Gain, High Impenance Pentode Radio Valve (or Tube) Type EF37A, in plain printed cardboard carton. Glass valve with red-painted (or screened) exterior surface. With single steel top cap, plastic? base, eight steel base pins, and one central plastic? base pin. One steel pin missing. With BVA (British Radio Valve Manufacturers Association) logo stamp on exterior surface of valve.
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