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TT8

Bendix Chronotron thermal time-delay resistance device, using controlled heating and resistance change to provide a predetermined electrical timing delay.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B7G
Base pins
7
Nominal heater
-

Description

TT8: Bendix Chronotron thermal time-delay resistance device. Published ratings, operating characteristics, and specialized device parameters are preserved from the complete approved datasheet.

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
-
Nominal heater current
34 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

Other

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Applicable promoted ratings are stored here; specialized device characteristics are retained as parameter rows.

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

196X Bendix

Published operating points and test conditions from this source.

SECTION 1

Other

Characteristics

  • Heater current

    34 mA

  • Device function

    Chronotron time-delay temperature-resistance device

  • Number of heaters

    2

  • Number of secondary resistance windings

    2