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Voltage - Triode (with diode, heptode or hexode) ·Hexode-Triode

TH2320

Mazda triode-hexode frequency changer for superheterodyne receivers. The triode provides local oscillation while the hexode mixes oscillator and incoming RF signals with useful conversion conductance.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
23 V / 200 mA

Description

Triode-heptode frequency changer for mains receivers.

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
23 V
Nominal heater current
200 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

Hexode

X-ray radiationInterelectrode capacitances
Transconductance
0.00075 S
Max plate voltage
250 V
Max screen voltage
250 V

Heptode mixer section.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0053 S
Amplification factor
16
Max plate voltage
150 V
Max cathode current
15 mA

Oscillator 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 01

1960 Mazda

Published operating points and test conditions from this source.

SECTION 1

Hexode

Other

  • Conversion conductance

    750 uA/V

  • Typical screen voltage

    100 V

SECTION 2

Triode

Other

  • Typical anode voltage

    80 V

  • Typical anode current

    4.5 mA