Antique radios, Old Time Radios
AD139
Country:
Europe
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Identical to |
AD139
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Similar
Tubes |
Normally replaceable-slightly different:
2SB474
Different maximum ratings:
AD148
; GFT3008
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First Source
(s) |
Mar.1960 : -- Collector info (Sammler)
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Predecessor Tubes |
OC30
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Base |
SPECIAL TUBEBASE in general
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Description |
PNP germanium alloy transistor intended as power amplifier in AF applications. -
Text in other
languages (may
differ)
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Dimensions (WHD) incl. pins / tip |
19 x 31 x 10 mm / 0.75 x 1.22 x 0.39 inch |
Weight |
5 g / 0.18 oz |
Information source |
-- Collector info (Sammler) KTT 1969/70
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AD139: F T 14/63 S.509
Egon Strampe
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AD139: KTT 1969/70
Günther Stabe † 19.8.20
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AD139: Telefunken, Handbuch Halbleiter 1966/67
Anonymous 10 Collector
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):64
Collection of
Collection of a member from E Collection of a member from D
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