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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

GC10/48

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ClassBi-directional 10-way Computing Tube
BaseOctal

Construction

Primary TypeOther / special
EnvelopeGlass
Sections10-way

Filament / Heater

Absolute Maximum Ratings

Plate Voltage350 V
Grid 1 Voltage140 V
Cathode Current0.55 mA

Audio Performance

Key Features
  • Intermediate Outputs
  • Bi-directional counting
  • Visual indication through bulb dome

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Recommended Operating Conditions475 V—820000—0.31 mA

Application Notes

The required anode current may be obtained from a 475 V supply via a 820 kΩ resistor.

Filters

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