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Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4001
Rectifier FW
1957
B7G
CV493 CV4005 F/6063 VX7113

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4002
Pentode
1953
B7G
F/6064 M8140

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4003
Double Triode SQ ECC82
1956
B9A
12AU7A 6067 M8136 VX7058

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4004
Double Triode SQ ECC83
1956
B9A
6057 M8137 VX7059

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4005
Rectifier FW
1959
B7G
6063 6X4W EZ90 QA2407 U78 VX7061

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4006
Pentode
1957
B9A
6059 CV2135 VX7081

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4007
Double Diode
1952
B7G
5726 6097 6AL5W E91AA M8212

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4008
Triode
1953

5719

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4009
Pentode
1956
B7G
5749 6BA6W CV454

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4010
Pentode SQ EF95
1948
B7G
5654 6096 6AK5W M8100 VX8100

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4011
Pentode
1950
B7G
5725 6AS6W CV2884 M8196

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4012
Heptode
1957
B7G
5750 6BE6W CV453

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4013
Double Triode
1956
B9A
5670 CV5166

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4014
Pentode SQ EF91
1953
B7G
6064 A3064 M8083

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4015
Pentode SQ EF92
1953
B7G
6065 M8161 QA2400 VX7075

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4016
Double Triode
1952

5814A 5814WA 5814 CV4003 CV4032 CV5046

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4017
Double Triode
1953
B9A
5751WA 5751

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4018
Thyratron
1952
B7G
2D21W 5727 M8204

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4019
Pentode
1952

6005 6AQ5W M8245

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4020
Voltage Stabiliser
1955
B7G
0A2WA CV1832 CV4100 M8223

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4021
Rectifier HW
1958

3B24WA CV812 CV2858

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4022
Triode
1960

6135 M8080

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4023
Pentode

B7G
6AU6WA 6AU6WB CV2524 CV8403

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4024
Double Triode SQ ECC81
1956
B9A
12AT7WA 6060 M8162 QA2406

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4025
Double Diode

B7G
6058 6AL5 CV4007 M8079 QA2404

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4026
Rectifier FW

5R4WGA CV717

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4027
Rectifier FW

5Y3WGTA CV1856

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4028
Voltage Stabiliser
1955
B7G
0B2WA 6074 CV1833 CV4101 M8224

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4029
Pentode
1954
B8D & B8D/F
5902 EL71

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4030
Voltage Stabiliser
1955

CV434 G75/3G

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4031
Double Triode SQ ECC91
1963
B7G
6101/6J6WA 6J6WA M8081

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4032
Double Triode

5814WA

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4033
Double Triode - Flying Leads
1956
B9A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4034
Double Triode
1956

CV4003 F/6067 M8149 VX7120

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4035
Double Triode
1956
CV4004 F/6057 M8214 VX7128

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4036
Rectifier HW
1956
B9A
CV4044 F/6443 F/8141 M8141

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4037
Heptode
1957

CV4012 F/5750 VX7119

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4038
Triode
1956
E2359

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4039
Pentode
1956
B9A
6062 CV2129 M8096 VX7080

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4040
Pentode
1956

CV416 S6F17

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4041
Pentode
1956

CV4040 S6F17F

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4042
Rectifier HW
1958

19G6 CV4057 S19G6F

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4043
Tetrode
1956
B9A
6061 6BW6 CV2136 VX7082

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4044
Rectifier HW
1960
B9A
6443 CV2235 M8091

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4045
Beam Tetrode
1956
CV2136 CV4043 F/6061 VX7503

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4046
Double Beam Tetrode
1956
B9G
44A/160M CV415 TT15

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4047
Voltage Stabiliser
1957

CV6135 G400/2G

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4048
Voltage Reference Tube
1959
B7G
0G3 85A2 CV449 M8090 QS1212 VX8098

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4049
Double Diode SQ
1956
M8237

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4050
Pentode - Flying Leads
1954

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4051
Double Triode
1955

CV4068 F/6158

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4052
Voltage Stabiliser
1955

QS1202

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4053
Voltage Stabiliser
1955
QS1203

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4054
Voltage Reference Tube
1962
F/5654 M8142 QS1213 VX8142

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4055
Pentode (SQ)
1956
B9A
6132 6CH6 CV2127 VX7102

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4056
Pentode
1956
B9A
CV4055 F/6132 VX7114

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4057
Rectifier HW
1958
B7G
CV371 CV4042 S19G6

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4058
Triode
1956
B7G
6100 6C4WA CV133 M8080

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4059
Diode Triode
1956
B7G
CV137 M8097

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4060
Beam Tetrode
1959
IO
S11E12

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4061
Rectifier EHT
1958

CV2289 CV9016 U37

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4062
Pentode
1959
B7G
A2134 CV2179 N78 VX3192

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4063
Pentode
1962
B7G
6516 CV136 M8082

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4064
Pentode
1956
B7G
CV2209 S6F33

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4065
Pentode
1956
A2134 CV4062

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4066
Voltage Reference Tube
1957

5783WA M8190

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4067
Beam Tetrode
1956

CV471 F/7001 M8167

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4068
Double Triode
1960
B9A
13D3 6158 CV2212 VX7124

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4069
Double Triode
1956

CV2212 CV4068 F/6158

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4070
Triode
1957

6AQ4 CV417 M8099

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4071
Rectifier
1963
IO
CV404 CV4116

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4072
Rectifier
1963

CV404

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4075
Rectifier EHT
1957

U60 VX3509

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4076
Double Triode
1957

CV858 M8179

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4079
Triode
1957
A2293 VX3208

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4080
Voltage Stabiliser
1958

75C1 M8225 M8999

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4081
Triode
1959

A2688 CV4107

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4082
Tetrode
1958

A2426

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4083
Pentode
1958

CV2209

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4084
Pentode
1958

CV4015

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4085
Pentode
1959
B9A
CV2901 M8195

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4086
Pentode (Flying Leads)
1959
B9A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4092
Tetrode
1959

5672 CV2238

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4093
Tetrode
1959

5678 CV2254

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4094
Tetrode
1959

1AD4 CV2237

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4095
Tetrode (Special Version)
1959

VX9186

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4096
Tetrode
1959

VX9185

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4097
Tetrode
1955
B9A
S2P20 VX6137

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4098
Pentode
1959

5725/6AS6W CV4011 CV5082

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4100
Voltage Stabiliser
1960

0A2WA CV4020

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4101
Voltage Stabiliser
1960

0B2WA CV4028

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4102
Pentode

CV4010

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4103
Double Diode

CV4007

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4104
Voltage Stabiliser
1960

CV5132 M8163 VX8163C

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4105
Triode
1961

A2744 VX3527

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4106
Pulse Tetrode
1960

VX3524

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4107
Triode
1961

A2913 CV5413

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4108
Double Triode
1962
B9A
7308 E188CC

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4109
Double Triode
1962

7308

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4110
Double Triode (Low Noise)
1962

7308

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4111
Double Triode (Low Noise)
1962

7308

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4113
Double Triode (Gold Pins)

CV4003

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4114
Double Triode (Gold Pins)

CV4014

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4115
Double Triode (Gold Pins)

CV4020

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4116
Rectifier HW
1962
IO
CV4071 UR45

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4117
Rectifier HW
1962

VX3542

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4118
Voltage Reference Tube

CV4048

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4119
Pentode (SQ)
1952

CV4055

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4120
Triode

CV408 E2975

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4121
Rectifier HW
1962

CV5226 UR40F

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4122
Double Triode

CV4003

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4123
Rectifier EHT
1965

VX3549

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4501
Pentode (Flying Leads)
1960
5A/172G 7432 CV465 VX7098 VX8121

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4502
Pentode (Flying Leads)
1960

5A/173G 7433 CV466 VX7099 VX8122

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4503
Pentode (Flying Leads)
1960
5A/174G 7434 CV472 CV476 VX7106 VX8124

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4504
Diode (Flying Leads)
1962
2S/141G 7435 CV469 VX7126 VX8123

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4505
Rectifier HW (Flying Leads)
1957

7436 CV473 EY70 VX8155

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4506
Pentode (Flying Leads)
1960

5A/175G VX7507

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4507
Triode (Flying Leads)
1960

7437 CV468 EC70 VX8156

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4508
Pentode (Flying Leads)
1961

7438 CV467 EF70 VX8240

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4509
Triode (Flying Leads)
1958

F3A1

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4510
Triode (Flying Leads)
1958

F3A2

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4515
Klystron
1958

K337 VX9081

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4516
Voltage Reference Tube
1959

CV4066 GD85WR VX8190C VX8253C VX9174

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4517
Pentode (Flying Leads)
1960

5A/172G VX7517C VX8121K

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4518
Pentode (Flying Leads)
1960

VX7518C

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4519
Pentode (Flying Leads)
1960

CV2387 VX8124

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4520
Series Stabiliser
1961

CV4038 VX3520

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4523
Thyratron (Tetrode)
1960

CV474 VX9181

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

CV4524
Klystron
1962

CV4515

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