Z573C

Cold-cathode noble-gas decade counting and switching tube designed for forward and reverse counting, with glow-discharge transfer between successive counting positions.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B27A
Base pins: -
Nominal heater: -

Description

Cold-cathode noble-gas decade counter with ten switching anodes for forward/reverse counting and direct drive of numeric display tubes.

Socket description

27-contact circular counting-tube base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B27A
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
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

Nixie

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published ratings and characteristics promoted where clearly stated.

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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Nixie

Characteristics

Burning voltage
200 V
Published glow-discharge value

Other

Cathode current
0.8 mA
Published operating value
Maximum counting frequency
5 kHz
Published counting limit