Type: ARCONI 2A3 "BLACK PLATE"
Manufacturer and factory: MARCONI CANADA
Year of production: 1930-40
Rating : 1
Original package : yes
Wonderfull first Marconi's 2A3. Engraved base with patented date and Canada symbol. A collector piece.
Mutual Conductance GM uMhos : 5450 Ia: 63mA
PRICE FOR A SINGLE TUBE
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