Tube-number record
21AVP4
0 archive entries
21AVP4 is a tube type in the TubeDatabase archive (class: Cathode Ray Picture Tube). Recorded specifications: brand Tung-Sol, year 1955, construction Display / CRT, base Small Shell Duodecal 6-Pin, socket Duodecal, and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.
BrandTung-Sol
ClassCathode Ray Picture Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialSmall Shell Duodecal 6-Pin
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage18000 V
Grid 2 Voltage500 V
Grid 1 Voltage125 V
H-C Voltage180 V
Audio Performance
Key Features
- Magnetic Deflection
- Low Voltage Electrostatic Focus
- Rectangular Glass Construction
- Grey Filter Faceplate
- External Conductive Coating
- External Single Field Ion Trap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Direct View | 18000 V | — | — | — | 0.1 mA |
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