WF BERLIN STR75/60
VOLTAGE REGULATOR TUBE
75C1 SR51 M8225 GD75P
MADE IN GERMANY
AT THE FORMER BERLIN TELEFUNKEN FACTORY IN 1957
The tubes are true NOS - never used
Voltage Stabiliser Tube
Nominal burning Voltage: 75V
Operating current range: 2-60mA.
Voltage regulation over above current range: 8V
Maximumum regulation resistance: 140 ohms
Miniature-7-Pin-Base
price is for 1 tube
combine shipping - doesn't metter how many tubes you purchase,