
1. Numeric Name Tubes -American Type and Japanese Origin/Ç-Ä^Æú{Æ©
1A. Early-Time 3-Digit/3 Ç (199-200s, etc)
5C. American EIA Numeric 4-Digit Name tubes/Ä^4 Ç
5D. VT Name Tubes/ÄVTÇ
Return to Tube Gallery/^óÇWŠºÉßé
No.
Ef
Class
American Type S/T
American Type ST
Japanese Original S
Japanese Original ST
199
3.3Vdc
Triode
UV-199
UX-199
200
5V
Triode
UV-200
201
5V
Triode
UV-201
201A, 301A
5V
Triode
UV-201A
UX-201A, CX-301A
UX-01A
101, 101A
4V
5V
Triode
(Ball) UF-101, UF-101A
202A
7.5V
Final (Power) Triode
UX-210
UX-202A (UX-210)
UX-10
202A
7.5V
Halfwave Rectifier
KX-202A
452
Twin Amp
UY-452 (KO)
295
for photo
UY-295 (KO)
506B
Fullwave rectifier
KX-506B (KO)
Table1B-(1-9)
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
1
1V
6.3V
Marcury Halfwave Rectifier
High Vacuum Halfwave Rectifier
1
1V
HX-1
KX-1V
1A
Pentode
UX-1A(KO)
UZ-1A(KO)
2/4
Diode
2S/4S
4A
Pentode
UY-4A(KO)
6
NVV-6
6A
5Vdc?
Triode
NVV-6A Tublar
6B
5Vdc
Triode
NVV-6B
6C
Twin Diode
(6H6-G)
KZ-6C(nec)
7A
Pentode
UY-7A(KO)
Table1B-(10s)
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
112, 112A
12A
5Vdc
Triode
UX-112
UX-112A, CX-112A,
UX-12A, UF-12A, UX-512A
12AK
5V IDH
Triode
UX-12AK Okaya
12C
5Vdc
Twin Triode
112A, 112B
12A, 12B, 12C, 12F, 12K
5V
Halfwave Rectifier
KX-112A
KX-12B (Takachiho), KX-12C, KX-12F (Matsuda, Elevam, Star), (Oldon, Don, Matsushita), KX-12K
12B, 12D
Marcury Rectifier
HX-112B (KO)
HX-12B(KO) HX-12D(elv)
13
Triode
UP-513
14
4V
Triode for Measurem.
UX-514
19
2.0Vdc
Twin Power Triode
UZ-19
Table1B-(20s)
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
120
3.3Vdc
Triode
UX-120
222
3.3Vdc
Tetrode
UX-222
224
24, 24A, 24B, 24S
2.5V IDH
Tetrode
UY-224, SY-224, 224-P-480, 24A
UY-24
UY-24C(KO), UY-24S
226
26, 26B
2.5V
Triode
UX-226, CX-326, SX-226, 26
UX-26
UX-26B (Matsuda, Lucky)
227
27, 27A
2.5V IDH
Triode
UY-27
Table1B-(30s)
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
30, 30M
2.0Vdc
Triode
UX-230
UX-30, 30/VT27 JanCHS Sylvania
UF-30 Matsuda, UN-30M
30C, 30MC
2.0Vdc
Twin Triode
UZ-30C, UZ-30MC Riken
31
2.0Vdc
Power Triode
UX-231
UX-31
31MC
2.0Vdc
Twin Power Triode
UZ-31MC
32
2.0Vdc
RF Tetrode
UX-232
UX-32, 32 KenRad
33, 33A
2.0Vdc
Power Pentode
UY-233
UY-33, 33 DuMont
UZ-33(KO) UZ-33A(KO)
34
2.0Vdc
Vari-mu Tetrode
UX-234
UX-34 Matsuda, 34 Ad.Auriema/RCA
235
35, 35B
2.5V dc-ac IDH
Vari-mu Tetrode
UY-235
UY-35
UY-35B
35D
5V
Vari-mu Tetrode replaced for 112A, 201A
UX-235D (KO)
UX-35D(KO)
36, 36A
6.3V IDH
Tetrode
UY-236
UY-36
UY-36A, UY-536
37, 37A
6.3V IDH
Triode
UY-237
UY-37A, UY-537
38, 38A
6.3V IDH
Power Pentode
UY-238
UY-38
UY-38A Matsuda, UY-538
39/ 44, 39A
6.3V IDH
Vari-mu Pentode
UY-239
UY-39
UY-39A, UY-539
Table1B-(40s)
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
40
5V
Triode
UX-240
UX-40
UX-540
41
6.3V IDH
Power Pentode
42
6.3V IDH
Power Pentode
43
25V IDH
Power Pentode
245
45, 45A cho- 45
2.5V
Power Triode
UX-45
(UX-45A), UX-Cho45/UX-Ž45
45H
6.3V IDH
Power Triode
UY-45H
46, 46B, 46C
2.5V
Power Tetrode
UY-46
UY-46B(elv) UY-46C
47, 47A 47S
2.5V
Power Pentode
UY-247
UY-47, [47]
UY-47A, UY-47S
47C, 47D, 47G, 47H, 47K
5.0V
Power Pentode
UX-47C, UZ-47D, UZ-47G, UZ-47H, UZ-47K
47C
1.25V
Power Pentode, replaced for 226
UY-247C UX-247C (KO)
UY-47C(KO) UX-47C(KO)
47D
5V
Power Pentode, replaced for 112A
UY-247D, UX-247D (KO)
UY-47D(KO) UX-47D(KO)
47B
2.5V
Power Pentode
UY-247B
47BK
2.5V IDH
Power Pentode
UY-47BK
Table1B-(50s)
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
250
7.5V
Power Triode
UX-250
53
2.5V
Twin Power Triode
UT-53
54, 54A
2.0Vdc
UX-54
UX-54A
55
2.5V IDH
Dual Diode Triode
56
2.5V IDH
Triode
UY-56A
57, 57A, 57S
2.5V IDH
Pentode
-
-
UY-257(KO)
UZ-57A, UZ-57S
UY-57(KO)
58, 58A
2.5V IDH
Vari-mu Pentode
-
-
UY-258(KO)
UY-58(KO)
59
2.5V IDH
Triple Grid Power Pentode
UT-59
UZ-59B
Table1B-(70s)
No.
Ef
Class
American Type S/T
American Type ST
Japanese Original S
Japanese Original ST
71, 71A
5Vdc
Power Triode
UX-171
UX-171A, [171A], [71A], [CX371A]
UX-71A
UX-71
71H
6.3V IDH
Power Triode
UY-71H Matsuda
75
6.3V IDH
Dual Diode Triode
76, 76A
6.3V IDH
Triode
UY-76A
77
6.3V IDH
Pentode
UZ-77
78
6.3V IDH
Vari-mu Pentode
79
6.3V IDH
Twin Power Triode
Table1B-(80s)
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
280, 380
80, 80C
5V
Fullwave Rectifier
'80
KX-280
KX-80C (Don)
80K
5V IDH
KX-80K
80
Marcury Rectifier
HX-280(KO)
HX-80(KO)
280B
80B
5V
Halfwave Rectifier
KX-280B Matsuda
KX-80B
80BK, 80HK, 80H
5V IDH
Halfwave Rectifier
80B
Marcury Rectifier
HX-280B (KO)
HX-80B(KO)
281, 381
81
7.5V
Halfwave Rectifier
UX-281
KX-281
KX-81(elv)
82
2.5V
Marcury Rectifier
HX-82
82B
Marcury Rectifier
HX-82B(elv)
83
5V
Marcury Rectifier
HX-83
83B
Marcury Rectifier
HX-83B(elv)
84
6.3V IDH
Fullwave Rectifier
84/6Z4, KY-84
84A
12.6V IDH
Fullwave Rectifier
KY-84A
85
6.3V IDH
Dual Diode Triode
UZ-85
89
6.3V IDH
Triple Grid Power Pentode
UZ-89
Table 1C-(10s).
No.
Ef
Class
Japanese S
Japanese ST
Japanese ST save Fillament Power
Japanese Spec type
11A
1.1Vdc
Pentode
UY-11A (T-tube)
11M
1.1Vdc
SC Tetrode
Uy-11M (Peanut)
14M
1.1Vdc
RF Pentode
Uy-14M Matsuda (Peanut)
Table 1C-(100s).
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
109
1.3Vdc
Triode
UX-109 Matsuda
109A
1.1Vdc
Triode
UX-109A, UF-109A =TB-651A*
109C
1.1Vdc
Twin Triode
UN-109C
Table 1C-(110s).
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
110
1.3Vdc
Power Triode
UX-110
111
1.3Vdc
SC Tetrode
UX-111, UX-111B, UF-111B, UY-111B
111A
1.1Vdc
RF Tetrode
UF-111A =MC-650A*
Table 1C-(130s).
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
130A
1.1Vdc
Triode
UX-130A
130C
1.1Vdc
Twin Triode
UZ-130C
133, 133A
1.1Vdc
Power Pentode
UY-133
UY-133A Matsuda (Riken)
133C
UY-133C (elv)
133D
1.1Vdc
Triode Power Pentode
UZ-133D =MC-624A*
133F, 133G
1.1Vdc
Power Pentode
UZ-133F UZ-133G
134
1.1Vdc
Vari-mu Pentode
UZ-134, UF-134 Toshiba, =MC-649A* (UF-134A?)
135
1.1Vdc
Penta-grid Converter
UZ-135 Toshiba =MC-625A*
Table 1C-(160s).
No.
Ef
Class
American Type S/T
American Type ST
Japanese Compatible and Original S
Japanese Original ST
166
2.0Vdc
Triode
UX-166
(UX-166A?)
166B
1.1Vdc
Triode
UX-166B
167
2.0Vdc
Pentode
(UX-167A?)
167B
1.1Vdc
Pentode
UX-167B
169
2.0Vdc
Power Pentode
UY-169A (KO, Horizon)
169B
1.1Vdc
Power Pentode
UY-169B HW
Table 5C
Name
Class
Eh V
Outline or Purpose
Equivalence
Power Pentode
5.5
TX Glass Octal ST
VT225
Double space Charge Tetrode
0.625
subminiature
1203
1203A
IH UHF Diode
6.3
Loktal
7C4
1291
DH Twin Triode
1.4/2.8
Loktal
VT182/3B7
1294
IH Diode
1.4
Loktal
VT183/1R4
1299
DH Output Beam
2.8/1.4
Loktal
VT185/3D6
DH Baem Power
12.6
Military? Metal
VT164
SCO Pentode
6.3
Industrial/Broadcast Metal
6J7
Beam Power
12.6
TX Glass 7-pin ST
VT136
HV Rectifier
1.25
subminiature
5651
Glow Discharge Diode Voltage Reference
-
Industrial mT
-
5654
SCO Pentode
6.3
Reliable mT
spec 6AK5, 6AK5W
5670
High Frequency Twin Triode
6.3
Reliable Noval (mt9)
spec 2C51
Power Output Pentode
1.25dc
subminiature
RF Pentode
1.25dc
subminiature
DF60
5687
Medium mu Twin Triode
6.3/12.6
Computer Noval (mt9)
-
5691
High mu Twin Triode
6.3
Reliable Glass Octal
spec 6SL7GT
RF Pentode
6.3
Military and Reliable subminiature
spec 6AK5
UHF Triode
6.3
Military and Reliable subminiature
CK-608CX
RF Medium mu Triode
6.3
Reliable subminiature
High mu Triode
6.3
Reliable subminiature
5725
Dual-Control RF Pentode
6.3
Reliable mT
spec 6AS6, 6AS6W, 6187
5726
Twin Diode
6.3
Reliable mT
spec 6AL5
5727
Thyratron
6.3
Reliable mT
spec 2D21
UHF Triode
6.3
Military and Reliable subminiature
5749
RCO Pentode
6.3
Reliable mT
spec 6BA6
5751
High mu Twin Triode
6.3/12.6
Reliable Noval (mt9)
spec 12AX7
5763
Beam Power
6.3
TX
HV Rectifier
1.25dc
subminiature
Voltage Regulator
-
subminiature
5814
5814A
Medium mu Twin Triode
6.3/12.6
Reliable Noval (mt9)
spec 12AU7
RF Pentode
6.3
Military and Reliable subminiature
5881
Beam Power
6.3
Industrial Audio Glass Octal
spec 6L6G
Electrometer
1.25dc
Industrial subminiature
5894
Twin Tetrode
6.3
TX
2B94, QQE06/40
Beam Power
6.3
Reliable subminiature
Dual Control Grid Pentode
26.5
Reliable subminiature
Beam Power
6.3
Reliable TX Glass Octal
spec 807
5963
Medium mu Triode
6.3/12.6
Computer Noval (mt9)
spec 12AU7
5964
High mu Twin Triode
6.3
Computer mT
spec 6J6
5965
Twin Triode
6.3/12.6
Computer Noval (mt9)
5965A
Twin Triode
6.3/12.6
Reliable Noval (mt9)
6005
Beam Power
6.3
Reliable mT
spec 6AQ5
Twin Triode
6.3
Reliable subminiature
6080
Low mu Twin Power Triode
6.3
Industrial
6AS7G
Power Pentode
1.25
Industrial subminiature
6100
Medium mu Triode
6.3
Reliable mT
spec 6C4
6101
Medium mu Twin Triode
6.3
Reliable mT
spec 6J6
6106
Fullwave Rectifier
5
Reliable Glass Octal
spec 5Y3GT
Low mu Twin Triode
6.3
Reliable subminiature
SCO Pentode
6.3
Industrial or Military
spec 6AC7, 6AC7WA
6136
SCO RF Pentode
6.3
Reliable mT
6AU6
6146
6146B
Beam Power
6.3
TX
Beam Power
12.6
TX
6146 Family
6186
SCO RF Pentode
6.3
Reliable mT
6AG5
6189
Medium mu Twin Triode
6.3/12.6
Reliable Noval (mt9)
-12AU7WA
6197
SCO Power Pentode
6.3
Comp
6201
High Frequency Twin Triode
6.3/12.6
Reliable Noval (mt9)
spec 12AT7, 12AT7WB
RF Pentode
6.3
Reliable subminiature
High Mu Triode
6.3
Reliable subminiature
5719
6252
Twin Tetrode
6.3
TX Industry
2B52, QQV03/20, QQE03/20
6336A
Low mu Twin Power Triode
6.3
Industrial Glass Octal
-
6360
Twin Tetrode
6.3/12.6
TX
Power Output
0.625
Industrial subminiature
Audio Voltage Amp
1.25
Industrial subminiature
6520
Low mu Twin Power Triode
6.3
Reliable Glass Octal
6AS7G
6550
Beam Power
6.3
Industrial Audio
RF Pentode
1.25dc
subminiature
6939
Twin Tetrode
6.3/12.6
TX
Indicator
1.1
subminiature
DM160
7189
7189A
Power Pentode
6.3
Industrial Audio
spec 6BQ5/EL84
7193
Medium mu Triode
6.3
TX Glass Octal
2C22
7320
Power Pentode
6.3
Industrial Audio
spec 6BQ5/EL84
7868
Beam Power
6.3
Industrial Audio
7984
Beam Power
13.5
TX Compactron
Twin Tetrode
13.8
TX Noval (mt9)
6360 Family
9002
Medium mu Triode
6.3
Industrial mT
spec 955
Table 5D
Name
Class
Eh V
Outline or Purpose
Equivalence
DH Medium mu Triode
2dc
ST
30
RCO Pentode
6.3
Metal
6K7
sa
sa
Glass Octal
6K7-GT
Penta-Grid Mixer
6.3
Metal
6L7
VT90
Twin Diode
6.3
Metal
6H6
Medium mu Triode
6.3
Metal
6J5
Twin Power Triode
6.3
Metal
6N7
Beam Power
6.3
Glass Octal
6V6GT/G
VT115
Beam Power
6.3
Metal
6L6
SCO Pentode
6.3
Metal
6SJ7
RCO Pentode
6.3
Metal
6SK7
Fullwave Rectifier
6.3
Glass Octal
6X5GT/G
RCO Pentode
12.6
Metal
12SK7
Power Pentode
12.6
Metal
12A6
Beam Power
12.6
TX Glass7-pin ST
1625
VT164
DH Beam Power
12.6
Metal
1619
Triode Hexode Converter
6.3
Metal
6K8
VT182
DH Twin Triode
1.4/2.8
Loktal
3B7, 1291
VT183
IH Diode
1.4
Loktal
1R4, 1294
VT185
DH Output Beam
2.8/1.4
Loktal
3D6, 1299
RCO Pentode
12.6
Metal
12SG7
Power Triode
5.5
TX Glass Octal ST
307A
VT231
Twin Medium mu Triode
6.3
Glass Octal
JAN 6SN7GT
Twin Diode Medium mu Triode
6.3
Metal
6SR7
Power Pentode
6.3
Metal
6AG7
Z