19CAP4
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BrandPhototron
ClassPicture Tube
BaseSmall Button 7 Pin
Filament6.3V @ 600mA
Construction
Primary TypeCRT
EnvelopeRectangular Glass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 2 Voltage600 V
Grid 1 Voltage-154 V
H-C Voltage200 V
Audio Performance
Key Features
- Short straight electron gun
- No ion trap required
- Short neck
- Tri-potential focus
- Metal backed screen
- Grey filter glass faceplate
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 16000V | - | - | - | - |
Application Notes
Grid No. 4 and the collector are connected together within the tube and referred to as anode. Cathode should be returned to one side or to the mid-tap of the heater transformer winding.
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