Tube-number record
19AP4
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BrandTung-Sol
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRound Metal Construction
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage19000 V
Grid 2 Voltage410 V
Grid 1 Voltage-125 V
H-C Voltage150 V
Audio Performance
Key Features
- Unipotential Cathode
- Magnetic Focus
- Magnetic Deflection
- Single Field Ion Trap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Magnetic Focus and Deflection | 12000 V | — | — | — | — |
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