Data set 01
1951 Mullard Valve and Service Manual
Published operating points and test conditions from this source.
SECTION 2
Triode
Other
Anode Voltage
90 V
ClassA
Anode Current
0.15 mA
ClassA
Voltage - Triode (with diode, heptode or hexode) ·Diode-Triode
DAC32
Directly heated 1.4-volt battery diode-triode combining a detector diode with a high-mu triode for low-frequency voltage amplification.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 1.4 V / 50 mA
Description
The Mullard DAC32 is a directly heated single-diode triode for 1.4 V battery operation; the triode section has amplification factor 65.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 1.4 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
2 physical sections, each with unique specifications.
Section 1
Diode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Diode section located at negative end of filament.
Section 2
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 240000 Ω
- Transconductance
- 0.000275 S
- Amplification factor
- 65
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.