Data set 01
1971 Machlette Laboratories
Published operating points and test conditions from this source.
SECTION 1
CameraPickup
Capacitance
Direct Interelectrode Capacitance
4.5 pF
Specialized - Photo Tube ·CameraPickup
7291A
Improved compact television camera pickup tube for small-format imaging applications.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- DITETRAR8
- Base pins
- -
- Nominal heater
- 6.3 V / -
Description
Improved small television camera tube.
Socket description
Small-button Ditetrar 8-pin
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- DITETRAR8
- Base pins
- -
- Nominal heater voltage
- 6.3 V
- Nominal heater current
- -
- 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
CameraPickup
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
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.