CO20B

Water-cooled millimeter-wave Carcinotron backward-wave oscillator covering approximately 128–136 GHz, with permanent-magnet focusing and up to about 3 W output.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -7.6 V / 2.1 A

Description

The CO20B is a millimetric backward-wave oscillator with integral permanent-magnet focusing, water cooling, and frequency/amplitude modulation over approximately 128-136 GHz.

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: -7.6 V
Nominal heater current: 2.1 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

TravelingWave

X-ray radiationInterelectrode capacitances

Max plate voltage: 3000 V
Max cathode current: 10 mA

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

1972 Thomson CSF

Published operating points and test conditions from this source.

SECTION 1

TravelingWave

Characteristic

Frequency Range
128-136 GHz
RF Output Power
0.2-3 W

Other

Maximum Anode Voltage
3000 V
Maximum Anode Current
10 mA
Maximum Line Voltage
7000 V
Maximum Line Current
80 mA
Minimum Warm-up Time
4 min
Maximum Load VSWR
5:1