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

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Tube-number record

A2599

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BrandThe M-O Valve Co. Ltd.
ClassVHF Triode
BaseNoval (B9A)
Filament6.3 V @ 0.3 mA

Construction

Primary TypeTriode
EnvelopeTubular
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Voltage250 V
Plate Dissipation2.5 W
Grid 1 Voltage20 V
Cathode Current20 mA
H-C Voltage100 V

Audio Performance

Key Features
  • Low noise
  • VHF triode
  • Grounded-cathode use
  • Commercial version of CV5242

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Static Characteristics130 V15000—6016 mA
Class A Low Noise Amplifier 45 Mc/s180 V———15.5 mA
Class A Low Noise Amplifier 200 Mc/s250 V———

Application Notes

Used in the first stage of a cascode amplifier, followed by an A2521 triode in grounded-grid connection.

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    14.5 mA