Tube-number record
4058
0 archive entries
4058 is a tube type in the TubeDatabase archive (class: Medium-Mu Triode). Recorded specifications: brand RCA, year 1966, construction Triode, socket Special / none, maximum plate voltage 400 V, and maximum plate dissipation 13 W. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassMedium-Mu Triode
BaseSpecial / none
Filament6 V @ 300 mA
Construction
Primary TypeTriode
EnvelopeGlass-Metal Pencil
Sections1
Filament / Heater
Heater NotesUnder standby condition 6.3V max
Absolute Maximum Ratings
Plate Voltage400 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier Class C (CCS) | 342 V | 7800 | — | 40 | 50 mA |
| Plate-Pulsed Oscillator | 2000 V | — | — | — | 30 mA |
Application Notes
In applications where plate dissipation exceeds 3 watts, a large area of contact must be provided between the plate cylinder and connector for adequate heat conduction.
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