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ID = 570
Brand: Osram GmbH KG; Berlin
Tube type:  Current Regulator, Urdox without FeH   Power-supply 
Identical to U2020
Similar Tubes
Normally replaceable-slightly different:

Base Europe side contact P8A (Au P, 8SC) (Codex=S)
Was used by Radio/TV-reception etc.
Filament Vf 20 Volts / If 0.2 Ampere / Specified current AC/DC ~ = (Series working)

200mA bei 19...23V
Netzspannung: 110...220V

Dimensions (WHD)
incl. pins / tip
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)
Information source Ballast Tube Handbook, The   
Taschenbuch zum Röhren-Codex 1948/49   

U2020: 338 GW
Egon Strampe

189_5.png U2020: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
U2020: Osram, Liste #60, 1937
Anonymous 15 Collector

Usage in Models 4= 1935 ; 13= 1936 ; 9= 1937 ; 12= 1938 ; 5= 1939 ; 1= 1940 ; 3= 9999

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):47

Collection of



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