| Identical to |
RES964 = E443H = L496D =
PP4101 = RTP4 = P43 = WE30 |
| Similar Tubes |
AL1 (other base) |
| First Series |
1933 Tube leaflet collection
E.Erb Analysis by original leaflets |
| First Source (s) |
1933 : -- Schematic
29.Oct.1933 : Funkschau (FS) |
| Predecessor Tubes |
RES664d RES374 |
| Successor Tubes |
1935 AL1 |
|
| Base |
Europe 5-Pin (O5A,
B5) (Codex=Foo) |
| Was used by |
Radio/TV-reception
etc. |
| Filament |
-: Direct / -:
Parallel, (AC/DC) / If: 1.1 Ampere /
Vf 4 Volts /
|
| Description |
RES964 Telefunken = E443H
Philips. By model of the very
similar USA-types PZ or 47 from
1931, with the E443H Philips now
introduced output pentodes in Europe
with equally 250 Volts screen and
plate voltage, it also brought the
7k-ohms load-standard to Europe
which remained until the end of the
tube era. The former E443N required
400 Vp, but extra 200 Vg2 [J.R.
2003-01-19]
Text in other languages (may
differ)
|
| Tube prices |
1 Tube prices (visible for
members only) |
| Literature |
Taschenbuch zum Röhren-Codex
1948/49 |
|
 |
| Usage in
Models |
8= 1933?
49= 1933 2= 1934??
8= 1934? 102= 1934
2= 1935?? 5= 1935? 64=
1935 1= 1936? 13=
1936 1= 1937?? 3=
1937 1= 1938?? 2=
1938 1= 1943?? 1=
1948? 1= 1962 |
|
Number of Models with
this tube 264 |
|
