| Country: |
Europe |
|
Brand: |
Common type Europe |
| |
Tube type: |
OCTODE Frequency converter Controlling (mu) |
|
Tube ID = 608
|
 |
| Identical to |
AK2
= 4M1
= TAK2
= TK2
= WE32
|
| Similar
Tubes |
CK1 (Heater different)
EK1 (Heater different)
VO4 (other base)
AK1 (other base)
A4GDR2 (can normally be replaced - small diff'ce)
|
| First Series |
Mar.1935 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Mar.1935 : Philips Bulletin
|
| Predecessor Tubes |
AK1
|
| Successor Tubes |
1936
EK2
|
|
| Base |
Europe side contact base P (P8A) (Codex=Seo)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel, (AC/DC) /
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
|
| Variants |
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
|
|
|
