Data set 01
1982 Toshiba
Published operating points and test conditions from this source.
SECTION 1
Cathode Ray
Other
Post-Accelerator Voltage
7000 V
Accelerator Voltage
2000 V
Characteristics
Helical Post-Accelerator Resistance
30 to - megohm
Specialized - Cathode Ray ·CathodeRay
3BHP1
Three-inch flat-face oscilloscope CRT with electrostatic focusing and deflection plus helical post-acceleration. The post-accelerated beam provides increased brightness while retaining the fast, precise electrostatic scanning needed for instrumentation.
Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
- Sections
- 1
- Base
- -
- Socket code
- B12A
- Base pins
- -
- Nominal heater
- 6.3 V / 300 mA
Description
3-inch flat-face electrostatic-focus/electrostatic-deflection CRT with helical post acceleration.
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
- 6.3 V
- Nominal heater current
- 300 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
- 7000 V
Post-accelerator maximum 7000 V; accelerator maximum 2000 V.
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.