3BMP1
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BrandSylvania
ClassCathode Ray Tube
BaseDiheptal 12-Pin
Filament1.5V @ 140mA
Construction
Primary TypeCRT
EnvelopeJ24V
Base MaterialMedium-Shell
SectionsSingle
Filament / Heater
Heater NotesVery Low Heater Power
Absolute Maximum Ratings
Plate Voltage6600 V
Plate Dissipation6 W
Grid 2 Voltage2200 V
Grid 1 Voltage-200 V
H-C Voltage50 V
Audio Performance
Key Features
- 3-inch Direct Viewed
- Round Glass Type
- Post Deflection Acceleration
- Close Tolerances
- Flat Face Plate
- Electrostatic Focus
- Electrostatic Deflection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Post Deflection Acceleration | 4000V | - | - | - | - |
Application Notes
Type 3BMP12 can be severely and permanently damaged if current density is allowed to rise too high. These types are designed for optimum performance when operating at EB3/EB2 ratio of 2.0.
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