Tube-number record
7MP14
0 archive entries
7MP14 is a tube type in the TubeDatabase archive (class: Oscillograph Tube). Recorded specifications: brand Radio Corporation of America (RCA), year 1951, and construction Display / CRT. The archive does not yet hold a photographed example of this type.
BrandRadio Corporation of America (RCA)
ClassOscillograph Tube
Construction
Primary TypeDisplay / CRT
Filament / Heater
Absolute Maximum Ratings
Audio Performance
Key Features
- Magnetic Focus
- Magnetic Deflection
- Cascade (two-layer) screen
- Medium-long-persistence
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Minimum functional ultor voltage for phosphor persistence | 4000 V | — | — | — | — |
Application Notes
Particularly useful for low/medium-speed non-recurring phenomena or high-speed recurring phenomena. Can be operated with scanning frequencies as low as 30 Hz without excessive flicker; lower frequencies possible with a yellow filter (Wratten No. 15 (G)). Operation below 4000V ultor voltage is not recommended for usable persistence.
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