Data set 01
196X Cintel
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Modulator to all other electrodes capacitance
25 pF
Published datasheet value
Specialized - Cathode Ray ·CathodeRay
90EG4P
Three-and-one-half-inch oscilloscope cathode-ray tube with electrostatic focusing and electrostatic deflection. Its compact direct-view beam system is intended for waveform display and electronic measurement instrumentation.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- B12A
- Base pins
- -
- Nominal heater
- 4 V / 1 A
Description
Electrostatically focused and deflected 3.5-inch oscilloscope cathode-ray tube.
Socket description
Duodecal 12-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- B12A
- Base pins
- -
- Nominal heater voltage
- 4 V
- Nominal heater current
- 1 A
- 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
No fixed ratings are recorded for this section.
Published ratings and characteristics promoted from the approved datasheet.
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.