1B24

Gas-filled microwave TR/ATR switching tube for pulsed transmitter/receiver duplexer service, protecting or isolating receiver and transmitter paths during radar pulses.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

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

Description

e Type 1B24 TR Tube GENERAL CHARACTERISTICS Electrical Max. Ignitor Ignition Time 5 Seconds Max. Insertion Loss 1.5 Decibels Frequency Tuning Range 8490 - 9600 Megacycles Ignitor Voltage Drop for 100 Microemperes 325 - 450 Volts Max. Peak Leakage Power 30 Milliwatts Max. Loaded Q 350 Recovery Time - Loss of signal in the tube four microseconds following the pulse shall not be more than 3 db in excess of the loss, 100 microseconds following the pulse. Ignitor Interaction, Max. 0.2 Decibel Mechanical Tonizable Medium Gas Number of Electrodes *2 Dimensions See Outline Mounting Position Any MAXIMUM RATINGS Ignitor Open Circuit Voltage, DC =750 to -1000 Volts Ignitor Current 100 to 200 Microamps. Ambient Temperature Range -850 to +100°C * The two points at the center of the tube constitute an rf gap, while the ignitor (at extreme end of reservoir and nega- tive) and body constitute a dc¢ gap used to produce lonization to help trigger the rf gap. Bloomfield, New Jersey December 5, 1945 ) fro

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: -
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

MicrowaveTRSwitch

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Source-derived physical section; applicable promoted ratings are populated from the printed sheet.

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

1947 Westinghouse

Published operating points and test conditions from this source.

SECTION 1

MicrowaveTRSwitch

Other

Max. Ignitor Ignition Time
5 s
Max. Ignitor Ignition Time 5 Seconds
Max. Insertion Loss
1.5 dB
Max. Insertion Loss 1.5 Decibels
Ignitor Voltage Drop for
100 V
Ignitor Voltage Drop for 100
Microemperes
450 V
Microemperes 325 - 450 Volts
Max. Peak Leakage Power
30 mW
Max. Peak Leakage Power 30 Milliwatts
Ignitor Interaction, Max
0.2 Decibel
Ignitor Interaction, Max. 0.2 Decibel
Ignitor Open Circuit Voltage, DC =
-1000 V
Ignitor Open Circuit Voltage, DC =750 to -1000 Volts
Ignitor Current
200 A
Ignitor Current 100 to 200 Microamps.

Characteristic

Frequency Tuning Range
9600 MHz
Frequency Tuning Range 8490 - 9600 Megacycles