Rectifier - Half Wave ·Rectifier
Directly heated Eimac high-vacuum power rectifier for demanding rectifier and voltage-multiplier service. Rated for approximately 30 kV peak inverse voltage and 1 A DC output where gas-filled rectifiers are unsuitable.
The Eimac 2-450A is a high-vacuum diode rectifier for high-power rectifier and voltage-multiplier service where high PIV, frequency, temperature, or transient conditions make gas-filled rectifiers unsuitable.
Special 4-contact transmitting-tube base
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 characteristics audited; remaining numeric data retained in parameter table.
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.
Filament Current
25 A to 28 A
Published Min/Max
Single-Phase Full-Wave DC Output Current
2 A
ChokeInputFilter; TwoTubes
Single-Phase Bridge DC Output Voltage
18600 V
ChokeInputFilter; FourTubes
Three-Phase Full-Wave DC Output Voltage
28000 V
ChokeInputFilter; SixTubes
Data set 02
Published operating points and test conditions from this source.
Filament: Thoriated Tungsten M£
7
Filament: Thoriated Tungsten M£7t. Nom. Mcz#.
Voltage
7.5 V
Voltage ----- 7.5 volts
Current [1]
25 A
Current ----- 25.0 28.0 amperes
Current [2]
28 A
Current ----- 25.0 28.0 amperes
Recorrmended plate connector ------ Eimac HR
8
Recorrmended plate connector ------ Eimac HR-8
Plate seal
225
Plate seal ----------- 225°C
The temperature of the plate seal and envelope must not be allowed to exceed
225
The temperature of the plate seal and envelope must not be allowed to exceed 225°C and
Peak Inverse plate voltage
30000 V
Peak Inverse plate voltage ---- 30,000 MAX. VOLTS
Plate Dissipation
450 W
Plate Dissipation ------ 450 MAX. WATI`S
D-C plate current
1 mA
D-C plate current ------ 1 MAX. AMPERE
Peak plate current
8 mA
Peak plate current ----- 8 MAX. AMPERES
The maximum d-c current rating of the [1]
2 mA
The maximum d-c current rating of the 2-450A is 1.0 amperes when the load incorporates a
The maximum d-c current rating of the [2]
-450 mA
The maximum d-c current rating of the 2-450A is 1.0 amperes when the load incorporates a
The maximum d-c current rating of the [3]
1 mA
The maximum d-c current rating of the 2-450A is 1.0 amperes when the load incorporates a
The [1]
2 mA
The 2-2000A has a maximum d-c current rating of 750 milliamperes and
The [2]
-2000 mA
The 2-2000A has a maximum d-c current rating of 750 milliamperes and
The [3]
750 mA
The 2-2000A has a maximum d-c current rating of 750 milliamperes and
a maximum peak inverse voltage rating of
75 V
a maximum peak inverse voltage rating of 75.000 volts. Cooling is by forced
citor-input filter wi+h [1]
26.5
citor-input filter wi+h 26.500 volts single-phase supply. Four 2-2000A's in a
citor-input filter wi+h [2]
2
citor-input filter wi+h 26.500 volts single-phase supply. Four 2-2000A's in a
citor-input filter wi+h [3]
-2000
citor-input filter wi+h 26.500 volts single-phase supply. Four 2-2000A's in a
Current
25 A
Current----- 25.0 amperes
Maximum Temperature of pla+e seal
225
Maximum Temperature of pla+e seal - - 225OC
PEAK INVERSE PLATE VOLTAGE
75000 V
PEAK INVERSE PLATE VOLTAGE - 75,000 MAX. VOLTS
PLATE DISSIPATION
1200 W
PLATE DISSIPATION - - - 1200 MAX. WATTS
D-C PLATE CURRENT]
750 mA
D-C PLATE CURRENT] - - - 750 MAX. MA
PEAK PLATE CURRENT
12 mA
PEAK PLATE CURRENT 12 MAX. AMPERES
MECHANICAL Cooling-The [1]
2
MECHANICAL Cooling-The 2-2000A is cooled by forced air. convec+ion. and
MECHANICAL Cooling-The [2]
-2000
MECHANICAL Cooling-The 2-2000A is cooled by forced air. convec+ion. and
seals [1]
1
seals.1{ an E. F. Johnson Co. No.124-214 socket is used, air a+
seals [2]
124
seals.1{ an E. F. Johnson Co. No.124-214 socket is used, air a+
seals [3]
-214
seals.1{ an E. F. Johnson Co. No.124-214 socket is used, air a+
base either down or up. The lead +o the plate terminal of the a s+a+ic pressure of
4
base either down or up. The lead +o the plate terminal of the a s+a+ic pressure of 4 inches of water measured at the inlet of
+ube should be flexible. the I/
4
+ube should be flexible. the I/4-inch cooling tube in the socke+ will provide sufficient
The special [1]
4
The special 4-pin base fits an E. F. Johnson Co. No. 124- base cooling. The base of the +ube is provided with a I-inch
The special [2]
124
The special 4-pin base fits an E. F. Johnson Co. No. 124- base cooling. The base of the +ube is provided with a I-inch
of the voltage multipliers illustrated in Fig
2 V
of the voltage multipliers illustrated in Fig. 2, it may be neces- ing hole and the manifold is of the same diameter, a s+atic
come desirable. The maximum d-c current rating of the [1]
2 mA
come desirable. The maximum d-c current rating of the 2-2000A
come desirable. The maximum d-c current rating of the [2]
-2000 mA
come desirable. The maximum d-c current rating of the 2-2000A
The thoria+®d-tungsten filament of +he [1]
2 A
The thoria+®d-tungsten filament of +he 2-2000A roaches the peak vdluo of current to which the +ub®s will bo subiectod
The thoria+®d-tungsten filament of +he [2]
-2000 A
The thoria+®d-tungsten filament of +he 2-2000A roaches the peak vdluo of current to which the +ub®s will bo subiectod
with fil.mont voltage. Fig
2 V
with fil.mont voltage. Fig. 2 as a percent.go of +ho o{fectivo load rosistanc® per tube
Plate Operation-The plato o{ the [1]
2
Plate Operation-The plato o{ the 2-2000A op®rat®s at dull rod (Ec/lp). The total charging-circuit iesistanc® involves the in.
Plate Operation-The plato o{ the [2]
-2000
Plate Operation-The plato o{ the 2-2000A op®rat®s at dull rod (Ec/lp). The total charging-circuit iesistanc® involves the in.
color et the maximum plato dissipation rating of
1200 W
color et the maximum plato dissipation rating of 1200 wa+ts.
Published value
2.2 V
2.2000A MAXIMUM.PERFORMANCE CAPABILITIES may bo taken as the regulation of the high-voltage supply ®i-
Fig
2
Fig. 2, the plate resistance (Rp) will be half as great and the
peak curren+ usually limits the d-c current which the [1]
2 A
peak curren+ usually limits the d-c current which the 2-2000A is
peak curren+ usually limits the d-c current which the [2]
-2000 A
peak curren+ usually limits the d-c current which the 2-2000A is
of ripple and its wave-shape, circuit conditions will de+ermine [1]
2 W
of ripple and its wave-shape, circuit conditions will de+ermine 2-2000A is 75,000 volts. In single-phase power-supply rectifier
of ripple and its wave-shape, circuit conditions will de+ermine [2]
-2000 W
of ripple and its wave-shape, circuit conditions will de+ermine 2-2000A is 75,000 volts. In single-phase power-supply rectifier
of ripple and its wave-shape, circuit conditions will de+ermine [3]
75000 W
of ripple and its wave-shape, circuit conditions will de+ermine 2-2000A is 75,000 volts. In single-phase power-supply rectifier
Choke-Input Fil.er-The maximum d-c curren+ rating of the peak a-c supply voltage (I [1]
41 V
Choke-Input Fil.er-The maximum d-c curren+ rating of the peak a-c supply voltage (I.41 times Erms in Fig. 2) in the case
Choke-Input Fil.er-The maximum d-c curren+ rating of the peak a-c supply voltage (I [2]
2 V
Choke-Input Fil.er-The maximum d-c curren+ rating of the peak a-c supply voltage (I.41 times Erms in Fig. 2) in the case
low, +he [1]
2
low, +he 2-2000A is capable of larger d-c output curren+s.
low, +he [2]
-2000
low, +he 2-2000A is capable of larger d-c output curren+s.
Load voltage (volts) maximum current rating of +ho [1]
2 V
Load voltage (volts) maximum current rating of +ho 2-2000A is 1500 milliamperes.
Load voltage (volts) maximum current rating of +ho [2]
-2000 V
Load voltage (volts) maximum current rating of +ho 2-2000A is 1500 milliamperes.
Load voltage (volts) maximum current rating of +ho [3]
1500 V
Load voltage (volts) maximum current rating of +ho 2-2000A is 1500 milliamperes.
half-wave rec+ifiers. rating of
1200
half-wave rec+ifiers. rating of 1200 watts, the maximum peak-inverse-vol+ago ra+ing
Capacitor-Input Filler-The [1]
2 mA
Capacitor-Input Filler-The 2-2000A is particularly suitable for of 75,000 volts, and the max;mum peak plo+e current of 12
Capacitor-Input Filler-The [2]
-2000 mA
Capacitor-Input Filler-The 2-2000A is particularly suitable for of 75,000 volts, and the max;mum peak plo+e current of 12
Capacitor-Input Filler-The [3]
75000 mA
Capacitor-Input Filler-The 2-2000A is particularly suitable for of 75,000 volts, and the max;mum peak plo+e current of 12
Capacitor-Input Filler-The [4]
12 mA
Capacitor-Input Filler-The 2-2000A is particularly suitable for of 75,000 volts, and the max;mum peak plo+e current of 12
D-C Plato Current (Ip) [1]
550 A
D-C Plato Current (Ip) 550 boo 650 700 750 milliamperes per +ube
D-C Plato Current (Ip) [2]
650 A
D-C Plato Current (Ip) 550 boo 650 700 750 milliamperes per +ube
D-C Plato Current (Ip) [3]
700 A
D-C Plato Current (Ip) 550 boo 650 700 750 milliamperes per +ube
D-C Plato Current (Ip) [4]
750 A
D-C Plato Current (Ip) 550 boo 650 700 750 milliamperes per +ube
The Eimac [1]
2
The Eimac 2X3000F is a high-vacuum, forced-air cooled, external-anode diode
The Eimac [2]
0
The Eimac 2X3000F is a high-vacuum, forced-air cooled, external-anode diode
Voltage
7.5 V
Voltage - - 7.5 volts
Current
51 A
Current - - 51 amperes
Glass-to-Metal seals
175
Glass-to-Metal seals - - 175® C
Anode core
175
Anode core - - 175. C
PEAK INVERSE PLATE VOLTAGE
-25000 V
PEAK INVERSE PLATE VOLTAGE -25,000 MAX. VOLTS
PLATE DISSIPATION
-3000 W
PLATE DISSIPATION -3,000 MAX. WATTS
DC PLATE CURRENT
3 mA
DC PLATE CURRENT 3 MAX. AMPERES
PEAK PLATE CURRENT
20 mA
PEAK PLATE CURRENT - - 20 MAX. AMPERES
Sufficient forced air cooling must beprovidedto maintain seal and anode core temperature at
175
Sufficient forced air cooling must beprovidedto maintain seal and anode core temperature at 175.C or below.
The table below lists minimum air-flow requirements to maintain tube temperatures below
175
The table below lists minimum air-flow requirements to maintain tube temperatures below 175®C with air
flowing in both the base-to-anode and anode-to-base directions. This tabulation presumes air at
40
flowing in both the base-to-anode and anode-to-base directions. This tabulation presumes air at 40®C and sea
Note: An extra
375 W
Note: An extra 375 watts have been added to these plate dissipation figures in preparing this tabulation, to