HY69
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BrandHytron
ClassBeam Pentode
Base5-pin medium
Construction
Primary TypeBeam Pentode
EnvelopeST-16
Base Materialphenolic
SectionsSingle
Filament / Heater
Materialthoriated tungsten
Warm-up Time1s
Absolute Maximum Ratings
Plate Voltage600 V
Plate Dissipation30 W
Grid 2 Voltage300 V
Grid 1 Voltage-200 V
Cathode Current120 mA
Audio Performance
Typical THD3%
Power Output100 W
Key Features
- instant-heating filamentary type
- thoriated tungsten filament
- no neutralization required up to 60 megacycles
- 30-watt beam pentode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| General Characteristics | 600V | 2900 | - | 6.5 | - |
| Class A Amplifier | 500V | - | - | - | 53mA |
| Class C Telegraphy | 600V | - | - | - | 100mA |
| Class AB2 Push-Pull | 600V | - | - | - | 240mA |
Application Notes
The HY69 is an instant-heating filamentary type 30-watt beam pentode for use in r-f and a-f service. Its versatility permits its use in all stages—r-f and a-f of an entire transmitter. In portable and mobile applications, its instant-heating filament can be turned off during standby periods to save battery drain.
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