Antique radios, Old Time Radios
U2020
| Country: |
Germany |
|
Brand: |
Osram GmbH KG; Berlin |
| |
Tube type: |
Current Regulator, Urdox without FeH Power-supply |
|
Tube ID = 570 |
 |
| Identical to |
U2020
|
| Similar
Tubes |
Normally replaceable-slightly different:
U2020/5
|
|
| Base |
Europe side contact base P (P8A) (Codex=S)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 20 Volts / If: 0.2 Ampere / -: Series, AC/DC / |
| Description |
200mA bei 19...23V
Netzspannung: 110...220V
Text in other
languages (may
differ)
|
| Dimensions (WHD) |
30 x 82 x mm / 1.18 x 3.23 x inch |
| Weight |
28 g / 0.99 oz |
| Tube prices |
1 Tube prices (visible for members
only)
|
| Literature |
The Ballast tube Handbook / Jacobi
Taschenbuch zum Röhren-Codex 1948/49
Röhren-Taschenbuch 1951; Deutscher Funk-Verlag, Berlin
|
|
|
|
|
|
collection JR
Jacob Roschy
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
Osram, Liste #60, 1937
Anonymous 15 Collector
|
|
|
| Usage in Models (calculation each 25th of the
month) |
2= 1935 ; 1= 1936 ; 8= 1938 ; 3= 1939 ; 1= 1940 ; |
| Number of Models at Radiomuseum.org with
this tube (valve, valves, valvola, valvole,
válvula, lampe): 15 |
|
| No further Information
for |
U2020 |
|
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