 |
| Identical to |
DCH21
|
| Similar
Tubes |
DCH31 (different connections)
DCH21_9pin (other base)
|
| First Series |
Jan.1941 Tube leaflet collection E.Erb |
| First Source
(s) |
Mar.1940 : Philips Bulletin # D 78
Aug.1940 : Philips Archive
|
| Predecessor Tubes |
KCH1
DCH21_9pin
|
| Successor Tubes |
1941
DCH25
DCH22
|
|
| Base |
Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vy)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
-: Battery = /
If: 0.15 Ampere /
Vf 1.4 Volts /
|
| Tube prices |
0 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
|
|
|
scc
Christian Schaufelberger
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
Lorenz Empfänger-Röhren , 9. Auflage
Michael Sigmund
|
|
|
