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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

816

0 archive entries

BrandRCA
ClassHalf-wave mercury-vapor rectifier
Base4-pin

Construction

Primary TypeRectifier
Rectifier TypeMercury-Vapor
EnvelopeST12
Base MaterialSmall-Shell
Sections1

Filament / Heater

MaterialCoated
Warm-up Time10s

Absolute Maximum Ratings

Plate Voltage7500 V
Cathode Current125 mA

Audio Performance

Key Features
  • Operating Position: Vertical, base down
  • Mercury-vapor
  • Half-wave
  • Coated filament
  • Small cap

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Rectifier Tube Drop15 V————

Filters

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