Data set 01
1956 Western Electric Tubes
Published operating points and test conditions from this source.
SECTION 3
Triode
Characteristics
Typical Plate Voltage
135 V
Typical Plate Current
2.1 mA
Other
Maximum Power Output
0.042 W
ClassA
Voltage - Triode (under 100V) ·Diode-Diode-Triode
352A
Western Electric double-diode triode integrating two low-voltage rectifying sections with a medium-mu amplifier. All sections share a common cathode, supporting combined detection and subsequent signal amplification.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 3
- Base
- -
- Socket code
- UX6
- Base pins
- 6
- Nominal heater
- 10 V / 820 mA
Description
The Western Electric 352A is a double-diode triode with a 10 V heater and a triode section having amplification factor about 13.3.
Socket description
Small 6-contact
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- UX6
- Base pins
- 6
- Nominal heater voltage
- 10 V
- Nominal heater current
- 820 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
- Max plate voltage
- 10 V
Diode section; source limits positive diode-plate swing to +10 V.
Section 2
Diode
X-ray radiationInterelectrode capacitances
- Max plate voltage
- 10 V
Diode section; source limits positive diode-plate swing to +10 V.
Section 3
Triode
X-ray radiationInterelectrode capacitances
- Plate resistance
- 18000 Ω
- Transconductance
- 0.00073 S
- Amplification factor
- 13.2
- Max plate voltage
- 200 V
Triode section; representative maximum-operating-condition values.
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
2026 Western Electric 300s
Published operating points and test conditions from this source.
SECTION 1
Diode
Capacitance
Diodes to cathode and heater shared
6.5 pF
SharedBothDiodes
SECTION 2
Diode
Capacitance
Diodes to cathode and heater shared
6.5 pF
SharedBothDiodes
SECTION 3
Triode
Capacitance
Triode grid to plate
1.5 pF
Triode grid to cathode and heater
1.6 pF
Triode plate to cathode and heater
3.8 pF
Other
Maximum heater-cathode voltage
50 V
Microphonic noise mean level
-45 dB
PlateVoltage=135V;GridBias=-6V;LoadResistance=100000ohm