Antique radios, Old Time Radios
VT-127A
|
Country:
United States of America (USA)
|
|
| Identical to |
VT-127A
= 100TS
|
| Similar
Tubes |
Normally replaceable-slightly different:
3-100D2
; VT-127
Multiple differences or of other kind:
227A_Eimac
; 227_Eimac
|
| First year |
1939
?
-- Collector info (Sammler)
|
| Predecessor Tubes |
VT-127
|
| Base |
SPECIAL TUBEBASE in general (Codex=sp)
|
| Was used by |
Radar |
| Filament |
Vf 5 Volts / If 10.5 Ampere / Direct |
| Description |
VHF transmitting triode with 100 Watt dissipation rating, designed just before WW2. Electrode structure similar to 100TL (of Eitel-McCullough), with bigger filament. All glass body with two plate side pins near the top, two grid side pins near the center and two filament pins from the bottom. Pulse rated at higher frequency than 100TL.
16 tubes used as ring oscillator at 205 MHz in SCR-268 searchlight director.
Productions reported by Eimac, Heintz & Kaufman, Westinghouse, Sylvania and Industrial & Commercial Electronics.
Text in other
languages (may
differ)
|
Dimensions (WHD)
incl. pins / tip |
100 x 138 x 68 mm / 3.94 x 5.43 x 2.68 inch |
| Weight |
80 g / 2.82 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (I)
|
|
VT-127A: ARRL Handbook 1972
Anonymous 10 Collector
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Collection of
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