TGI2-400/16 THYRATRON MODULATOR HYDROGEN 400A/16000V. Thyratron pulse modulator TGI-400/16 to operate in pulse circuits. Applications: electrical installation, laser power supply, medical equipment, radar. Filament voltage - 6.3V, Filament current - 12A, Direct and reverse voltage - 16KV, Pulse anode current - 400A, Filling - Hydrogen.