Data set 01
1951 Mullard Valve and Service Manual
Published operating points and test conditions from this source.
SECTION 1
Diode
Characteristic
HeaterOrFilamentVoltage
2 V
HeaterOrFilamentCurrent
50 mA
Voltage - Triode (with diode, heptode or hexode) ·Diode-Diode-Triode
KBC32
Low-consumption battery double-diode triode for detection and audio-frequency voltage amplification. The paired diodes provide receiver rectification while the triode amplifies the recovered signal from an economical directly heated filament.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 3
- Base
- -
- Socket code
- IO
- Base pins
- -
- Nominal heater
- 2 V / 50 mA
Description
Battery double-diode triode with directly heated filament for detector and voltage-amplifier service.
Socket description
International Octal
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- IO
- Base pins
- -
- Nominal heater voltage
- 2 V
- Nominal heater current
- 50 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
3 physical sections, each with unique specifications.
Section 1
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Representative of two diode detector sections.
Section 2
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Second physical detector diode section added in approved reconciliation.
Section 3
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 21000 Ω
- Transconductance
- 0.0012 S
- Amplification factor
- 25
AF amplifier triode 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.
Data set 02
1958 Mullard Receiving Tubes
Published operating points and test conditions from this source.
SECTION 3
Triode
Characteristics
Plate Voltage
100 V
Plate Current
2.4 mA
Amplification Factor
25 ratio