 |
| Identical to |
EL60
|
| Similar
Tubes |
EL34 (other base)
|
| First Series |
1947 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Feb.1949 : Radio-Mentor # 2
Jun.1948 : -- Original-techn. papers.
|
| Predecessor Tubes |
4699
4650
L497D
F443N
EL6
|
| Successor Tubes |
EL34
|
|
| Base |
Loctal-9-Pin (B9G) (Codex=Ya)
|
| Filament |
-: Parallel, (AC/DC) /
If: 1.3 Ampere /
Vf 6.3 Volts /
|
| Description |
Power output pentode, launched mid 1948 by Philips
Many years after the F443N the EL60 appeared as a new 25 W power output pentode, now as all-glass tube with the 9-pin "key"(Loktal)-base as the EF50. As this
wasn't accepted by the market, one year later it became provided with an octal base and appeared then as EL34, which is in production up to today.
[Jacob Roschÿ,15 May 2003]
Text in other
languages (may
differ)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
| |
|
| |
Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
|
|
|
|
Collection JR
Jacob Roschy
|
|
RTT 1974 (Franzis) 13. Auflage
Martin Renz
|
|
|
