Data set 01
9999 Mixed 2000
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Plate voltage
1000 V
Typical first/third anode voltage
Specialized - Cathode Ray ·CathodeRay
3AFP1
3AFP1 high-sensitivity green P1 oscilloscope cathode-ray tube with electrostatic focus and X/Y deflection, 6.3 V 0.55 A heater.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- B9G
- Socket code
- -
- Base pins
- 9
- Nominal heater
- 6.3 V / 550 mA
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- B9G
- Socket code
- -
- Base pins
- 9
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- 550 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
B9G - Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Cathode Ray
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 1500 V
- Max plate dissipation
- 2 W
CRT first and third anodes maximum 1500 V (minimum 700 V, design-centre minimum 800 V), second anode maximum 500 V, maximum difference 1200 V. Peak total anode dissipation 2 W (not ordinary amplifier plate dissipation). Typical first/third anodes 1000 V; focusing second anode 210–320 V; grid visual cutoff -28 to -65 V. X deflection 20 V/cm, Y deflection 11.5 V/cm. Screen P1 green, medium persistence. Grid resistor max 1 MΩ. Source: ETEL 1957.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.