Antique radios, Old Time Radios
1N21B
|
Country:
United States of America (USA)
|
|
| Identical to |
1N21B
= TH8121B
|
| Similar
Tubes |
Normally replaceable-slightly different:
1N21
; 1N21A
; 1N21C
; 1N21D
; 1N21E
; 1N28
; CV727
; TH8021B
|
| First Source
(s) |
04.May.1946 : Electron Tube Registration List 493
|
| Base |
No base
|
| Was used by |
Radar |
| Description |
Silicon, point-contact mixer diode, NF 12.7dB at 3GHz.
Also available with following suffixes: R, reverse polarity; M, matched pair; MR reverse polarity matched.
Text in other
languages (may
differ)
|
Dimensions (WHD)
incl. pins / tip |
7 x 22 x mm / 0.28 x 0.87 x inch |
| Weight |
2 g / 0.07 oz |
| Tube prices |
1 Tube prices (visible for members
only)
|
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (I) KTT 1969/70
- - Manufacturers Literature
|
|
1N21B: KTT 1969/70
Günther Stabe † 19.8.20
|
|
1N21B: Compagnie Françaiqe Thomson Houston
Patrice Zeissloff
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
Collection of
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| Data Compliance |
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