Data set 01
1938 Raytheon
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Characteristics
Heater or filament voltage
8.3 V
Published nominal value
Heater or filament current
600 mA
Published nominal value
Specialized - Cathode Ray ·CathodeRay
3BAP7
P7 cathode-ray simulator tube for visual inspection of input signals and checking focus and deflection circuitry. Raytheon documentation gives accelerating capability to approximately 6 kV.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- DUODECAL12
- Base pins
- -
- Nominal heater
- 8.3 V / 600 mA
Description
P7 cathode-ray simulator tube for visual inspection of input signals and checking focus and deflection circuitry.
Socket description
Duodecal 12-contact color CRT base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- DUODECAL12
- Base pins
- -
- Nominal heater voltage
- 8.3 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
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
- 6000 V
Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed when applicable.
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.