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Power - Tetrode (NOT beam) ·Tetrode

4Y100R

Mazda power tetrode for substantial power-amplifier and series-regulator applications.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / 3.5 A

Description

Dual power tetrode with separate systems for high-power amplifier and regulator applications.

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
12.6 V
Nominal heater current
3.5 A
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

Tetrode

X-ray radiationInterelectrode capacitances
Plate resistance
550 Ω
Transconductance
0.02 S
Amplification factor
11
Max plate voltage
800 V
Max plate dissipation
80 W
Max screen dissipation
7.5 W

Representative row for repeated identical sections.

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

Tetrode

Capacitance

  • Input capacitance

    25 pF

  • Output capacitance

    22 pF

  • Anode-grid capacitance

    0.5 pF

  • Grid-grid capacitance

    0.02 pF

Data set 02

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Application

  • Application

    PowerAmplifier_Or_Regulator text