BA

Cold-cathode twin-diode gas-filled full-wave rectifier requiring no heater supply. Rated for approximately 1 kV peak inverse voltage and 350 mA nominal output, using gas-discharge conduction for heaterless rectification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: -
Base pins: 5
Nominal heater: -

Description

BA is a Raytheon cold-cathode twin-diode gas-filled full-wave rectifier requiring no heater supply.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: 5
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

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 1000 V
Rectifier nominal output current: 350 mA
Rectifier peak forward current: 1 A
Rectifier forward voltage drop: 80 V

Published ratings and characteristics promoted from the approved source.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 1000 V
Rectifier nominal output current: 350 mA
Rectifier peak forward current: 1 A
Rectifier forward voltage drop: 80 V

Second physical rectifier section; promoted electrical properties populated from identical section.

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

1937 Raytheon Radio Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Maximum AC voltage per plate RMS
350 V
FullWave GasFilled
Maximum DC output current
350 mA
FullWave GasFilled
Maximum peak plate current
1000 mA
FullWave GasFilled
Maximum inverse peak voltage
1000 V
FullWave GasFilled

Characteristic

Minimum starting peak voltage
400 V
FullWave GasFilled
Average dynamic voltage drop
80 V
FullWave GasFilled

SECTION 2

Rectifier

Other

Maximum AC voltage per plate RMS
350 V
FullWave GasFilled
Maximum DC output current
350 mA
FullWave GasFilled

Data set 02

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

Anode voltage
220 V
Grid bias
-6 V
Anode current
3 mA
Durchgriff
6.6 %
Cold anode voltage maximum
400 V
Grid leak resistance maximum
600 kΩ

Capacitance

Grid-anode capacitance
3.8 pF