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Please note that in the near future, the material on this page will be migrated to my newest and greatest project yet, Tubeopedia , an online compendium of electron tube related knowledge that almost anyone can edit!
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Here you'll find manfacturers' data sheets and curves for many popular (and some not so popular ) tube types.
If you can't find what you need here, try
Duncan's Tube Data Sheet Locator.
These files are in Adobe Acrobat PDF format.  You need the
Adobe Reader plugin or Ghostscript to view them.
(Where file size isn't listed, the files are less than 100 Kb in size)
The files for the most part are in English language, a few are in Japanese or Russian
Small Signal Tubes
12AT7 ECC81 (184kb)

12AU7 ECC82 (167 kb)

12AY7 6072 (98 kb)

12AX7 ECC83 7025 (397 Kb)

26 (UX226, CX326)

27 (UX227,CX327)

417A 5842

5687
5691
5692
5693
5751

5879 (155 Kb)

6AU6 EF94 (235 kb)

6C4 EC90 (also see 12AU7)

6CG7 6FQ7 (see also 6SN7) (177 Kb)

6DJ8 ECC88 (171 Kb)

6EU7 (see also 12AX7 ECC83)

6J7 (also 1620 and EF36) (126 Kb)

6L5 6L5G (167 Kb)

6N7 6N7G 6N7GT ECC31 1649 (156 Kb)

6SC7

6SJ7 6SJ7GT 5693 (144 Kb)

6SL7GT ECC35

6SN7GT 6SN7GTA 6SN7GTB (149 Kb)

7119 E182CC

7247 12DW7 ECC832

76

EF86 6267 (179 Kb)
Rectifier Tubes
5AR4 GZ34

5R4 (5R4GY, GYB)

5U4 (5U4G, 5U4GB)

5V4 (5V4G, 5V4GA, GZ32)

5Y3 (5Y3G, 5Y3GT) (303 Kb)

6AX5GT (141 kb)

6CA4 EZ81

6X4 6202 EZ90 (282 kb)

6X5 6X5G 6X5GT EZ35 (145 kb)
Power Output Tubes
12E1 (216 kB)

211 VT4-C (253 kB)

2A3

350B

45 (UX245,CX345)

4CX250B(312 kb)

4X150A(284 kb)

50L6-GT

5881 (see also 6L6G 6L6GC 807)(178 kb)

6080 (6AS7G, 6AS7GA) (234 Kb)

6146 (6146A, 6146B)(1.58 Mb)
6336A (430 kB)
6550A (168 KB)

6973 (194 kb)

6AQ5 EL90 (see also 6V6) (257 kb)

6B4G (Sovtek) (see also 2A3)

6BG6G 6BG6GA

6BM8 ECL82

6BQ5 EL84 7189 (also see 7189A)  (275 Kb)

6CW5 EL86 (with plans for "single ended push pull" amp) (259 kb)

6G-B8 6GB8 (see also 8417)

6L6G (also see 6L6GC 5881, and 807 pages) (1.8 Mbytes)

6L6GC (also see 6L6G 5881, and 807 pages (289 Kb)

6V6 6V6GTA 6V6GT 6V6G 7408 (see also 6AQ5)

71A (UX271, CX371)

7189A (also see 6BQ5 EL84 7189) (149 kB)

7591 7591A (also see 7868)

7868 (also see 7591)

807 5933 (RCA USA data) (288 Kb)

807 (STC Australia data) (704 Kb)

807 (curves only, curves also apply to 5881, 6L6G and 6L6GC) (2.6 Mbytes)

807 (STC Australia) Plans for 75W Class AB2 amplifier (600 Kb)

811A (242 Kb)

845 (also WE 284)
8950 (278 kb)

EL509 EL519 6KG6 6KG6A

KT66

KT77

KT88

KT90 (134 Kb)

SV83 6P15
Other documents on tubes
What you need to open a tube factory (a 1952 description of the Ei tube factory in Yugoslavia)
RCA Industrial Power Tube Guide

Resistance Coupled Amplifier Charts for small-signal tubes(474 Kb)

KenRad Engineering Bulletin on 6L6 tubes (1.3 megabytes)

RCA Engineering Bulletin on Beam Power Tubes (3.9 mb)

US Military Test Standards For Vacuum Tubes (MIL-STD-1311B) (2.6 mb)
US Army Signal Corps WW2 "VT" Codes Vacuum Tubes (gives commercial equivalent numbers)
EIA  Manufacturer Origin Codes of US Tube & Components
Tube Origin and Type Codes for Philips, Mullard, Amperex and related companies
To contact us by email please click here
Taylor Tubes
Most Taylor tubes without the "T" prefix are interchangable with their RCA equivalents,
TT17
T20
TZ20
T21
T40/TZ40
T125
T200
203 (also 203Z, 203HD)
211 (also 211C, 211C HD)
T249/T258
T282
803
805
810
813
814
822
838

T841
845/284A
866
866JR
872
T873
T875
8008
Western ElectricTubes
101D
101F
205D
205E
215A
231D
242A
244A
247A
249A
252A
254B
256B
262A
264A
271A
272A
274A
275A
276A
277A
280A
282A
284A (845)
350B
416A
417A
420A
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