Antique radios, Old Time Radios
RR-21
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Country:
United States of America (USA)
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| Identical to |
RR-21
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| First Source
(s) |
Jul.1953 : -- Original prospect or advert Electronics
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| Base |
Wires
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| Description |
Early PNP junction transistor, suitable for audio or servo amplifiers.
Vce -15V, Ic -3mA, beta 30, power gain 25dB.
Radio Receptor Company, RR, Brooklyn, N.Y., U.S.A.
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
9 x 8 x 5 mm / 0.35 x 0.31 x 0.20 inch |
| Weight |
1 g / 0.04 oz |
| Information source |
-- Original prospect or advert Electronics - July, 1953
-- Collector info (Sammler) KTT 1969/70
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RR-21: TTT Steidle 1981
Günther Stabe † 19.8.20
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