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Tube Database (7,341 tube types · 1,270 archive entries)

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Tube-number record

GI-50A

0 archive entries

BrandUSSR
ClassTriode
BaseFlexible / flying leads

Construction

Primary TypeTriode
Envelopemetal-ceramic
Base Materialcopper anode

Filament / Heater

Materialcarbonized thoriated tungsten
Warm-up Time15s

Absolute Maximum Ratings

Plate Voltage32000 V
Plate Dissipation40000 W
Grid 1 Voltage-450 V

Audio Performance

Key Features
  • forced water cooling
  • metal-ceramic envelope
  • wide-band signal amplifier
  • thoriated tungsten cathode

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
pulse26000 V75000—37350000 mA

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