 |
| Identical to |
EF5
= TEF5
= MEF5
|
| Similar
Tubes |
EF25 (can normally be replaced - small diff'ce)
|
| First Series |
May.1936 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
May.1936 : Philips Bulletin
|
| Predecessor Tubes |
AF3
CF3
EF3
EF4
|
| Successor Tubes |
1938
EF9
|
|
| Base |
Europe side contact base P (P8A) (Codex=Sf)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel / series AC/DC /
If: 0.2 Ampere /
Vf 6.3 Volts /
|
| Tube prices |
0 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
| |
|
| |
Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
|
|
 |
|
JR
Jacob Roschy
|
|
RTT 1974 (Franzis) 13. Auflage
Martin Renz
|
|
RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
|
|
 |