Tube-number record
23DSP4
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BrandPhilco
ClassTelevision Picture Tube
BaseCRT / special base
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
Envelope187-T1
Sections1
Filament / Heater
Warm-up Time11s
Heater NotesHeater warm-up time defined as time for heater voltage to reach 80% of rated value.
Absolute Maximum Ratings
Plate Voltage25000 V
Grid 2 Voltage80 V
H-C Voltage200 V
Audio Performance
Key Features
- Aluminized screen
- Spherical faceplate
- Non ion trap gun
- Internal shielding
- HiGm tube
- Tension band implosion protection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cathode Drive Service | 18000 V | — | — | — | — |
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