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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

8727

0 archive entries

8727 is a tube type in the TubeDatabase archive (class: High-Mu Triode). Recorded specifications: brand RCA, year 1968, construction Triode, socket Special / none, maximum plate voltage 250 V, and maximum plate dissipation 2.5 W. The archive does not yet hold a photographed example of this type.

BrandRCA
ClassHigh-Mu Triode
BaseSpecial / none
Filament
6.3 V @ 225 mA

Construction

Primary TypeTriode
EnvelopeCeramic Metal
SectionsSingle

Filament / Heater

Warm-up Time5s

Absolute Maximum Ratings

Plate Voltage250 V
Plate Dissipation2.5 W
Grid 1 Voltage-50 V
Cathode Current25 mA
H-C Voltage50 V

Audio Performance

Key Features
  • Fast Warmup Time
  • Ceramic Metal
  • High-Mu Triode
  • Pre-Tinned Heater Pins
  • Sturdy Coaxial-Electrode Structure

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Static Characteristics125 V1600043757014 mA

Application Notes

Pencil tube designed for RF power amplifier and oscillator service up to 5 GHz and altitudes up to 100,000 feet.

Filters

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