| Country: |
United States of America (USA) |
|
Brand: |
Common type USA |
| |
Tube type: |
Double Diode-Triode Audio Frequency |
|
Tube ID = 2720
|
 |
| Identical to |
6SR7
= 6g1
= VT-233
|
| Similar
Tubes |
6BF6 (other base)
6SR7GT (other shape (e.g. bulb, size))
6R7 (different connections)
12SR7 (Heater different)
6ST7 (Heater different)
6R7GT (different connections)
6R7G (different connections)
|
| First Source
(s) |
01.Apr.1940 : Electron Tube Registration List
|
| Predecessor Tubes |
85
6R7
6R7G
|
| Successor Tubes |
6BF6
7E6
|
|
| Base |
Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vk)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel / series AC/DC /
If: 0.3 Ampere /
Vf 6.3 Volts /
|
| Tube prices |
0 Tube prices (visible for members
only)
|
| Literature |
Essential Characteristics, GE 1973
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
| |
|
| |
Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
|
|
|
|
M.F.
Manfred Fries
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
SEL Handbuch 1964
Peter Hoddow
|
|
|
