Tube-number record
21CLP4
0 archive entries
21CLP4 is a tube type in the TubeDatabase archive (class: Television Picture Tube). Recorded specifications: brand Rogers Electronic Tubes & Components, year 1958, construction Display / CRT, socket CRT base (B7 family), and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.
BrandRogers Electronic Tubes & Components
ClassTelevision Picture Tube
BaseCRT base (B7 family)
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeJ171
SectionsSingle
Filament / Heater
Heater NotesSurge heater voltage must not exceed 9.5V rms; maximum warm-up surge 410V when heater is negative.
Absolute Maximum Ratings
Plate Voltage
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical focusing condition 1 | 14000 V | — | — | — | 0.1 mA |
| Typical focusing condition 2 | 16000 V | — | — | — | 0.1 mA |
Application Notes
The socket for the base should not be rigidly mounted; it should have flexible leads. Grid No. 3 and 5 voltage range for optimum focusing varies with anode voltage.
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