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2050A

Gas-filled thyratron for relay and grid-controlled rectifier service. Its control grid triggers gas discharge for electronic switching.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: IO
Base pins: 6
Nominal heater: 6.3 V / 600 mA

Description

2050A is a gas-filled thyratron for relay and grid-controlled rectifier service. The supplied RCA manual excerpt was reviewed for heater data, physical sections, maximum ratings, electrical characteristics, capacitances, and stated operating conditions.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: 6
Nominal heater voltage: 6.3 V
Nominal heater current: 600 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

Thyratron

X-ray radiationInterelectrode capacitances

Max plate voltage: 250 V
Max cathode current: 10 A

Published maximum ratings and device-specific characteristics are promoted where schema-compatible; remaining switching/gauge/regulator electrical data is retained in section parameters.

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

1971 RCA HB3 Binder 2 of 7

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristics

Voltage (AC or DC) — published value 1
6 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Voltage (AC or DC) — published value 2
3 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Voltage (AC or DC) — published value 3
10 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Current at 6.3 volts — published value 1
6.3 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Current at 6.3 volts — published value 2
6 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
For do anode volts = 100, grid-No.l
100 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
volts (square-wave pulse) = 50, peak
50 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
anode amperes during conduction = 1 — published value 1
1 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
anode amperes during conduction = 1 — published value 2
500 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
With do anode volts = 125, grid-No.l
125 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
volts = -250, grid-No.1 resistor (ohms) — published value 1
-250 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
volts = -250, grid-No.1 resistor (ohms) — published value 2
1 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
= 1000, do anode amperes = 0 1 — published value 1
1000 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
= 1000, do anode amperes = 0 1 — published value 2
0 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
= 1000, do anode amperes = 0 1 — published value 3
1 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
= 1000, do anode amperes = 0 1 — published value 4
50 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
volts = -10, grid-No.l resistor (ohms)
-10 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
= 1000, do anode amperes = 0 1 — published value 1
1000 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
= 1000, do anode amperes = 0 1 — published value 2
0 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
= 1000, do anode amperes = 0 1 — published value 3
1 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
= 1000, do anode amperes = 0 1 — published value 4
100 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
do anode supply volts (rms) = 460,
460 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
average anode amperes = 0.1 — published value 1
100 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
average anode amperes = 0.1 — published value 2
5 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Anode Voltage Drop (Approx )
8 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
No.l resistor (ohms) = 0, grid No.2 — published value 1
0 ohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
No.l resistor (ohms) = 0, grid No.2 — published value 2
2 ohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Grid-No.2 Control Ratio (Approx.) for
2
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
grid-No.l resistor (ohms) = 0, grid-No.2 — published value 1
0 ohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
grid-No.l resistor (ohms) = 0, grid-No.2 — published value 2
2 ohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
resistor (ohms) = 0, grid No.1 connected — published value 1
0 ohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
resistor (ohms) = 0, grid No.1 connected — published value 2
1 ohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
For anode subgly frequency of 6o cys
6
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
GRID-No.2 CURRENT
2
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
AMBIENT-TEMPERATURE RANGE — published value 1
-75 C
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
AMBIENT-TEMPERATURE RANGE — published value 2
90 C
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
AMBIENT-TEMPERATURE RANGE — published value 3
-75 C
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
AMBIENT-TEMPERATURE RANGE — published value 4
90 C
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
RMS Anode Voltage — published value 1
117 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
RMS Anode Voltage — published value 2
400 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
RMS.Grid-No.l Bias Voltage°
5 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
DC Grid-No.l Bias Voltage
-6 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Voltage — published value 1
5 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Voltage — published value 2
6 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Resistance — published value 1
1 Mohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Resistance — published value 2
1 Mohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Anode-Circuit Resistances — published value 1
1200 ohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Anode-Circuit Resistances — published value 2
2000 ohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
0 Approximately 180° out of phase with the anode voltage — published value 1
0 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
0 Approximately 180° out of phase with the anode voltage — published value 2
180 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
6.3 volts. Regardless of the heater-voltage supply used, the
6.3 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
A grid—Xo.i resistor having a value as high as 10 megohms
10 Mohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Ef=6.3 VOLTS
6.3 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Et=6.3210% VOLTS
6.321 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
AMBIENT —TEMPERATURE RANGE ("C1=-75 TO +90 — published value 1
-75
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
AMBIENT —TEMPERATURE RANGE ("C1=-75 TO +90 — published value 2
90
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
AC ANODE VOLTS (RMS-60 CPS)
60 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
E f = 6.3 VOLTS
6.3 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
GRID—N?2 RESISTOR IOHMS = O
2 ohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Heater or filament voltage nominal
6.3 V
Nominal value from supplied datasheet.
Heater or filament current nominal
600 mA
Nominal or average value from supplied datasheet.

Other

Forward — published value 1
180 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Forward — published value 2
650 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Inverse — published value 1
360 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Inverse — published value 2
1300 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
conduction — published value 1
-100 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
conduction — published value 2
-100 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
conduction — published value 1
-10 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
conduction — published value 2
-10 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
conduction — published value 1
-250 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
conduction — published value 2
-250 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Peak — published value 1
1 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Peak — published value 2
1 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averageb — published value 1
0.2 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averageb — published value 2
0.1 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
second maximum — published value 1
10 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
second maximum — published value 2
10 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averageb — published value 1
0 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averageb — published value 2
0.01 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averageb — published value 1
0.01 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averageb — published value 2
0.01 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
respect to cathode — published value 1
100 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
respect to cathode — published value 2
100 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
respect to cathode — published value 1
25 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
respect to cathode — published value 2
25 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
0.1 ampere — published value 1
0.1 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
0.1 ampere — published value 2
10 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
0.1 ampere — published value 1
0.1 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
0.1 ampere — published value 2
2 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

Input
4.2 pf
Input 4.2 pF
Heater Current
600 mA
Heater Current 0.6 ampere
For dc anode volts = 100, grid-No
1 V
For dc anode volts = 100, grid-No. 1 volts (square-wave pulse)
RMS Anode Voltage 117
400 V
RMS Anode Voltage 117 400 volts
Peak Grid-No. 1 Signal Voltage 6
6 V
Peak Grid-No. 1 Signal Voltage 6 6 volts
Grid-No. 1 Circuit Resistance . 1
1 Mohm
Grid-No. 1 Circuit Resistance . 1 1 megohm
Anode-Circuit Resistancef
2000 ohm
Anode-Circuit Resistancef .... 1200 2000 ohms
For average anode current below
100 mA
For average anode current below 0.1 ampere 10 megohms
For average anode current above
100 mA
For average anode current above 0.1 ampere 2 megohms
DC Operating Current (Continuous)
3.5 mA
DC Operating Current (Continuous) 3.5 mA
DC Operating Current (Continuous)
1.6 mA
DC Operating Current (Continuous) 1.6 mA