1H35

Directly heated variable-mu heptode for mixer service in battery-operated radio equipment. Its controlled characteristic permits gain variation during frequency conversion while maintaining modest filament demand.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B7G
Base pins: 7
Nominal heater: 1.6 V / 50 mA

Description

Directly heated variable-mu heptode for mixer service.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B7G
Base pins: 7
Nominal heater voltage: 1.6 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

1 physical section, each with unique specifications.

Section 1

Heptode

X-ray radiationInterelectrode capacitances

Transconductance: 0.00016 S
Max plate voltage: 90 V
Max screen voltage: 67.5 V
Max plate dissipation: 0.15 W
Max cathode current: 3 mA

Published ratings and characteristics promoted from the approved source.

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

1969 Tesla Manual of Electronic Tubes

Published operating points and test conditions from this source.

SECTION 1

Heptode

Application

Application
MixerFrequencyConverter text