| Country: |
United States of America (USA) |
|
Brand: |
Common type USA |
| |
Tube type: |
HalfWave Rectifier-BeamPowerTetrode |
|
Tube ID = 3703
|
 |
| Identical to |
12A7
= CV909
|
| First Source
(s) |
Dec.1933 : 70 Years of Radiotubes and V.
|
| Successor Tubes |
25A7
32L7
70L7GT
|
|
| Base |
7-Pin-Base U7A = small, old, USA (Codex=Ma)
|
| Filament |
-: Indirect /
-: Parallel / series AC/DC /
If: 0.3 Ampere /
Vf 12.6 Volts /
|
| Description |
Output tube + Halfwave rectifier
Text in other
languages (may
differ)
|
| Tube prices |
0 Tube prices (visible for members
only)
|
| Literature |
Essential Characteristics, GE 1973
|
|
|
| |
|
| |
Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
|
|
|
|
R. Aufils
Raynal Aufils
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
Raytheon Databook 1937
Emilio Ciardiello
|
|
|
