Tube-number record
3-500Z
0 archive entries
3-500Z is a tube type in the TubeDatabase archive (class: High-Mu Power Triode). Recorded specifications: brand EIMAC, year 1973, construction Triode, base Metal/Glass, socket 5-pin, maximum plate voltage 4000 V, and maximum plate dissipation 500 W. The archive does not yet hold a photographed example of this type.
BrandEIMAC
ClassHigh-Mu Power Triode
Base5-pin
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialMetal/Glass
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class AB2 RF Linear Amplifier (Cathode Driven) | 2500 V | — | — | 130 | 400 mA |
| Class AB2 RF Linear Amplifier (Cathode Driven) | 3000 V | — | — | 130 | 400 mA |
| Class C RF Power Amplifier (Grid Driven) | 3000 V | — | — | — |
Application Notes
The EIMAC 3-500Z is a compact power triode intended for zero-bias Class-AB2 amplifier service in audio or radio-frequency applications. Forced-air cooling is required.
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