Tube-number record
CK7575/QK787
0 archive entries
CK7575/QK787 is a tube type in the TubeDatabase archive (class: Recording Storage Tube). Recorded specifications: brand Raytheon, construction Tetrode, socket Duodecal, and maximum plate voltage 4000 V. The archive does not yet hold a photographed example of this type.
BrandRaytheon
ClassRecording Storage Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeTetrode
EnvelopeGlass
SectionsDual-gun
Filament / Heater
Heater Notes6.3V +/- 10%
Absolute Maximum Ratings
Plate Voltage4000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Write Gun (Mode 2) | 3500 V | — | — | — | — |
| Read Gun (Mode 2) | 3700 V | — | — | — | 0.002 mA |
Application Notes
Dual-gun cathode-ray Recording Storage Tube capable of simultaneous writing and reading. Stored signals can be held for many hours or read several thousand times. Scan conversion properties equivalent to CK6835/QK464A.
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