TG1B / TG-1B / ТГ1Б is a Russian vacuum thyratron tube. Application field in rectification and relay mode in special equipment.

Cathode type: oxide, indirect heating

Envelope: glass, miniature

Mass, g: 5

Filament voltage, V: 6.3

Filament current, A: 0.225

Ignition voltage, V: 28

A-C voltage, V: 16

Grid voltage, V: minus 6

Max.average cathode current, A: 0.02

Max.reverse voltage, kV: 0.24