1x NOS 5C3S / 5U4G / 5U3C Gray Anode Rectifier Tube Tested SVETLANA Kenotron

Svetlana gray anode kenotron, tested on L3-3, equivalent to 5U4G/5U3C double rectifier

NOS Soviet Rectifier tube kenotron 5C3S (5U4G, 5U3C).

GRAY ANODE!

One tube in one lot.

The date of manufacture of the tubes is different.

Tubes were tested on L3-3 tester and are 100% working.

Technical characteristics and electrical parameters of the 5C3S lamp:

Double-anode kenotron 5C3S with a directly heated oxide cathode.

Designed for rectifying alternating current of industrial frequency 50 Hz.

Durability not less than 500 hours.

Weight not more than 72 g.

Filament voltage 5 ± 0.5 V

Filament current 3 ± 0.3 A

Nominal anode voltage (constant) 75 V

Nominal anode current (for each diode) 225 mA

Anode current limit (peak value) 750 mA

Reverse anode voltage limit (peak value) 1700 V

Rectified current nominal (average value) 230 mA

Rectified current limit (average value) 250 mA

Glass design with octal base