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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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Tube-number record

COULOMÈTRE

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BrandCSF
ClassElectrolytic integration tube
BaseFlexible / flying leads

Construction

Primary TypeOther / special
EnvelopeGlass capillary
Base MaterialAraldite
Sections1

Filament / Heater

Absolute Maximum Ratings

Cathode Current5 mA

Audio Performance

Key Features
  • Electrochemical mercury transfer
  • Independent of mounting position
  • Sealed with araldite
  • Interchangeable cell models available

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Electrolytic integration——200—0.2 mA

Application Notes

Used for measuring quantity of electricity or time (hour meter). Applications include battery charge control, solar exposure indicator, and warranty tracking.

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