 |
| Identical to |
AK1
= TK1
= MO465
= WE21
|
| Similar
Tubes |
AK2 (other base)
A4GDR (can normally be replaced - small diff'ce)
BK1 (Heater different)
NMO46 (can normally be replaced - small diff'ce)
FC4 (other base)
|
| First Series |
Mar.1934 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Mar.1934 : Philips Bulletin
Feb.1934 : Toute la radio # 1
|
| Predecessor Tubes |
RENS1224
E448
X4122
|
| Successor Tubes |
AK2
|
|
| Base |
Europe 7-Pin (C7A, C, 1933) (Codex=Leo)
Top contact with a cap
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
If: 0.65 Ampere /
Vf 4 Volts /
|
| Tube prices |
1 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49 Design = Philips
|
|
|
| |
|
| |
Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
|
|
|
|
Collection JR
Jacob Roschy
|
|
RTT 1974 (Franzis) 13. Auflage
Martin Renz
|
|
RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
|
|
|
