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ID = 18951
Soviet Union
Brand: Common type USSR (SU) tube/semicond.
Tube type:  Half-Wave Vacuum Rectifier 
Identical to 1Ц1С = 1Z1_DDR = OSW3126
Similar Tubes
Normally replaceable-slightly different:

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap
Filament Vf 0.7 Volts / If 0.185 Ampere / Direct
Tube prices 1 Tube prices (visible for members only)
1Ц1С: collection JR
Jacob Roschy

1Ц1С: Datenblatt
Wolfgang Bauer

1Ц1С: Datenblatt
Wesselin Tzenow † 25.5.10

Usage in Models 1= 1946 ; 1= 1949?? ; 1= 1950 ; 1= 1951 ; 4= 1953 ; 3= 1954 ; 3= 1955 ; 1= 1958??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):15

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