| Country: |
United States of America (USA) |
|
Brand: |
Common type USA |
| |
Tube type: |
HEPTODE |
|
Tube ID = 4699
|
 |
| Identical to |
6BY6
|
| Similar
Tubes |
Normally replaceable-slightly different:
1680; 2032; 6687; E91H
Other class quality (otherwise equal):
5915; EH900S; EH960
Heater different:
3BY6
|
| First Source
(s) |
30.Nov.1953 : Electron Tube Registration List
|
| Predecessor Tubes |
2032
1680
|
| Successor Tubes |
6687
|
|
| Base |
Miniatur-7-Pin-Base B7G, USA 1940
|
| Was used by |
Technology / Measurement |
| Filament |
Vf 6.3 Volts / If: 0.3 Ampere / -: Indirect / -: Parallel / series AC/DC / |
| Description |
Designed as logic switching tube: both control grids at 0 V = tube conducts, control grid #1 OR control grid #3 at negative voltage: tube blocked. _ [JR]
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
Michael Schlör
|
|
|
|
Collection JR
Jacob Roschy
|
|
Telefunken Taschenbuch 1971
Anonymous 15 Collector
|
|
RCA Tube Manual
Peter Hoddow
|
|
|
