Specialized - Thyratron ·Thyratron
Gas-filled thyratron for relay and grid-controlled rectifier service. Grid triggering initiates controlled gas conduction for switching and power-control circuits.
2050 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.
International Octal
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
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
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Maximum peak inverse anode voltage
1300 V
Maximum peak cathode current
1 A
Maximum average cathode current
100 mA
Data set 02
Published operating points and test conditions from this source.
Control-grid voltage range
-75 to +90 V
Maximum anode voltage
650 V
Maximum inverse anode voltage
1300 V
Peak cathode current
1 A
Average cathode current
100 mA
Fault current
10 A
Grid circuit resistance maximum
10 Mohm
Data set 03
Published operating points and test conditions from this source.
Heater voltage
6.3 V
Nominal
Heater current
600 mA
Nominal
Data set 04
Published operating points and test conditions from this source.
Heater heating time
10 s
Tube drop
8 V
Conducting
Peak forward anode voltage
650 V
Peak inverse anode voltage
1300 V
Maximum grid voltage
-50 V
Data set 05
Published operating points and test conditions from this source.
Heater voltage
6.3 V
Heater current
600 mA
Maximum anode voltage
450 V
ControlledRectifier
Maximum average anode current
100 mA
ControlledRectifier
Anode-to-control-grid capacitance
0.26 pF
Gas fill
Xenon
Application
Relay and grid-controlled rectifier service
Data set 06
Published operating points and test conditions from this source.
Voltage (AC or DC) — published value 1
5.7 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Voltage (AC or DC) — published value 2
6.3 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Voltage (AC or DC) — published value 3
6.9 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Current, with heater volts = 6.3 0.54 — published value 1
6.3 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Current, with heater volts = 6.3 0.54 — published value 2
0.54 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Current, with heater volts = 6.3 0.54 — published value 3
0.6 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Current, with heater volts = 6.3 0.54 — published value 4
0.66 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
for conditions: 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.
square-pulse volts = 50; ar,d peak anode amp
50 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
For conditions: 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. l resistor lohmsl =
-250 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
1000; do anode amp. = 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 amp. = 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 amp. = 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 amp. = 0. 1 — published value 4
50 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
For conditions: do anode volts= 125; grid-No. I
125 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
volts= -10; grid-No. I resistorlohmsl = 1000 — published value 1
-10 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
volts= -10; grid-No. I resistorlohmsl = 1000 — published value 2
1000 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
do anode amp. = 0. 1 — published value 1
0 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
do anode amp. = 0. 1 — published value 2
1 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
do anode amp. = 0. 1 — published value 3
1 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
supply volts Irmsl = 460, and average anode
460 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
amp. ' 0. 1 — published value 1
0 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
amp. ' 0. 1 — published value 2
1 A
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
amp. ' 0. 1 — published value 3
500 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Tube Voltage Drop (Approx.)
8 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
resistor Imegohmsl =0; grid-No.2 volts = 0 — published value 1
0 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
resistor Imegohmsl =0; grid-No.2 volts = 0 — published value 2
2 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
resistor Imegohmsl =0; grid-No.2 volts = 0 — published value 3
0 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
resistor Imegohmsl =0; grid-No.2 volts = 0 — published value 4
250 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Grid-No.2 Control Ratio (Approx.) with grid-No. l
2
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
resistor (megohms) = 0; grid-No.2 resistor — published value 1
0 Mohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
resistor (megohms) = 0; grid-No.2 resistor — published value 2
2 Mohm
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
(megohmsl = 0; grid-No. l volts = 0 — published value 1
0 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
(megohmsl = 0; grid-No. l volts = 0 — published value 2
0 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
(megohmsl = 0; grid-No. l volts = 0 — published value 3
800 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
GRID-No.2 (SHIELD-GRID) VOLTAGE
2 V
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.
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.
conductionm — published value 1
-10 V
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
conductionm — 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.
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.
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.
Average — published value 1
0.2 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Average — published value 2
0.1 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
of 0.1 sec. max — published value 1
0.1 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
of 0.1 sec. max — published value 2
10 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
of 0.1 sec. max — published value 3
10 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averay~m — published value 1
0 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averay~m — published value 2
0.01 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averagem — published value 1
0 mA
Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.
Averagem — 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.
Data set 07
Published operating points and test conditions from this source.
Heater Voltage (ac/dc) 5.7 6.3
6.9 V
Heater Voltage (ac/dc) 5.7 6.3 6.9 volts
Heater Current 0.54 0.60
660 mA
Heater Current 0.54 0.60 0.66 ampere
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