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HY40Z

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BrandHytronic Laboratories
ClassTriode
Base4 Pin UX Ceramic

Construction

Primary TypeTriode
EnvelopeST-19
Base MaterialCeramic

Filament / Heater

MaterialThoriated Tungsten

Absolute Maximum Ratings

Plate Voltage1000 V
Plate Dissipation40 W
Grid 1 Voltage-150 V
Cathode Current115 mA

Audio Performance

Key Features
  • Processed Graphite Plate
  • Molybdenum-Nickel Grid
  • Processed Lava Insulation
  • Zero-Bias Class B Operation
  • High efficiency R.F. Amplifier

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Average Characteristics1000V42001900080115mA
A.F. Class B Modulator (Two Tubes)1000V-1725-280mA
R.F. Power Amplifier Class C Telegraphy1000V---115mA

Application Notes

The Hytron HY40Z tube is a high efficiency triode of rugged construction. Two type HY40Z's may be operated at zero-bias up to full ratings as an audio power amplifier. Internal structure permits operation at maximum rating at frequencies up to 60 megacycles.

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