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Please note that these are OEM spec sheets,except for some of the Resistance Coupled Amplifier charts, you will not be downloading any pages of a regular tube manual that you already have..
We have General Electric (USA, not UK)and RCA recieving tube manuals for sale, as well as the RCA Transmitting Tube Manual TT-4, and a book of data on Western Electric tubes. Click Here for details& prices

Can't find it here? Try searching the Tube Data Sheet Locator , the world's biggest index of tube datasheets..

Other pages online with tube data:
Iggy Pop'sRussian Tube Reference page.
RCA RC10 tubemanual (1933) complements of Tim Reese and HarvardUniversity.
This one has a lot of pages from the European
Philips Tube Manual.
This one has
Telefunken data pages (in German), in PDF format
This one has data on
European,Russian & American tubes in HTML (German & English)

Some more useful info:
The entire
1945 Taylor Tube Catalog in PDF format (note, 1.6 megabyte download!)

A complete list of Philips (aka Amperex) Factory & Tube Codes. Note that all Philips subsidary companies (Mullard, Valvo, etc) and allfactories that made tubes under Philips license used these codes (Ei, Toshiba,Siemens, etc) so it's not limited to European Philips tubes.PDF file.

US Military Standard Test Methods For Electron Tubes , the famous MIL-STD-1311B. Everything you want to know about how tube specsare determined, from flywheel shock testing to altitude testing to salt spraycorrosion resistance. This document covers nearly every kind of tube (microwaveTWT's, CRT's, klystrons, magnetrons, thyratrons, etc) the military used/usesas well as standard glass recieving tubes, so it's rather lengthy (636 pages!).A 3.6 megabyte PDF file.

Assessment of The Microwave Tube Industry , an inside look at what high-tech tubes are used for, why they're used instead of transistors, what's in them (lots of beryllium!), and who makes them. Complements of Your Tax Dollars and Crane Naval Surface Warfare Center.380Kb PDF file.

Here's instructions for convertingamplifiers using 7591,to 6L6/5881 . Note that the newElectro-Harmonix 7591A is now available,and it does not requireany rewiring to use.

Here's how to convert Quicksilver and otheramplifiers from 8417 to 6550/KT88/KT90

The "Help,My Amp has 7027's!" FAQ:What to do, and why you shouldn't panic..

Curve plots for popular current production12AX7's:(provided by Steve Bench)
Tesla , Chinese , Sovtek 12AX7WA, and Sovtek 12AX7WXT
Steve also sent in this simple method for stage gain calculation

0A2 (also 0A2WA) PDF File

0B3 PDF File

0C3 (0C3A, 0C3W) PDF File


2A3 Except for basing and/or filament,same ratings apply for 6A3, 6B4-G, 6A5.
Sovtek 6B4-G and 2A3 are slightlydifferent. Click Here for sheeton Sovtek 6B4-G.
Page1 ,Page2 , Page3 , Page4

2D21 see 5727

2E26 PDF File

4CX250B If you're used to glass power tubes,the idea of getting 600W out of two tubes that are half the size of a 6550 might seem interesting..the 2,000V power supply is kinda scary, though!
Ratings & Notes , CurvesPg 1 Curves Pg 2 , Dimensions

5AR4/GZ34
Page1 , Page2 , Page3 ,Page4 ,Page5

5R4-GY (within ratings, same as 5R4-GYA, 5R4-GYB, 5R4WGA, 5R4WGB, 274B, except for basing, 274A)
Page 1 , Page2 , Page 3 , Page 4
Military Specs for 5R4WGB (PDF File)

5U4-GB (within ratings, same as5U4-GA, 5U4-G,except for basing, 5Z3)
Page 1 , Page2 , Page 3 , Page 4 , Page5 , Page 6
Military Specs for 5U4-GB (PDF File)

5V4-G/GA
Page 1  Page2 Page 3  Page4

5Y3-GT
Page1 ,Page2 , Page3 ,Page4 ,Page5

6A3 See 2A3

6A5-G See 2A3

6AK5/EF95 See 5654

6AL5/EAA91 See 5726

6AS7-G See 6080

6AU6 (EF94,6AU6WA, 6AU6WC, 6136) PDF File

6B4-G Also see 2A3
Mil specs For 6B4-G

6BE6 See 5750

6BQ5/EL84 also 7189, E84L, 7320
Page 1 , Page2 , Page 3 , Page 4 ,Page 5 , Page 6
Page 7 , Page8 , Page 9 , Page 10 , Page11
Download a ZIP file (240K) of all 6BQ5 pages by clicking here

6C4 (also EC90) For Resistance Coupled Amplifier Chart, click here
Page 1    Page 2    Page 3    Page 4

6C45-Pi
Page 1

6CA7/EL34
Download a ZIP file (792K) of all 6CA7 pages by clicking here
Page1 , Page2 , Page3 ,Page4 ,Page5 , Page6
Page7 , Page8 , Page9 , Page10 , Page11 ,Page12
Page13 , Page14 , Page15 , Page1 , Page17

6CA10
Page 1 Page 2

6CG7/6FQ7 For Resistance CoupledAmplifier Chart, clickhere
Page1 , Page2 , Page3 , Page4

6CL6 PDF File

6DJ8/ECC88 (for design purposes, thesame basic data applies to 7308, 6922, E88CC, E188CC, and CCa)
Page1 , Page2 , Page3 ,Page4 ,Page5

6EU7 For Resistance Coupled Amplifier Chart, see 12AX7 chart below
Page 1    Page 2    Page 3    Page 4

6G-B8 (text on page one is in Japanese)Very similar to 8417
Page1   Page2  Page3 Page4

6H30-Pi
Page 1

6J7  (also 1620) For ResistanceCoupled Amplifier Chart, click here
Page 1    Page 2    Page 3    Page4

6KG6/EL509/EL519 (except forfilament voltage, same data applies to 40KG6/PL509)
Page1 , Page2 , Page3 , Page4 Page5

6L6-GC (also see 807,6L6WGB) (Within ratings limitations, the same basic data applies to 1614, 1622,6L6, 6L6-G, 6L6-GA, 6L6-GB, 6L6-GT, 5881,and 7581, 7027,7027A...7027 has screen connection on Pin 1 as well as Pin 4,grid on Pins 5 and 6) Download a ZIP file (451K) of all 6L6-GC pages by clicking here
Page1 , Page2 , Page3 , Page4 , Page5 ,Page6 , Page7 ,Page8 , Page9 , Page10
Download a ZIP file (683K) of 9 more pagesadditional graphs for using 6L6 wired as a triode by clicking here

6L6WGB (see also 6L6-GC, same except for maximum ratings)
PDF File

6N7/6N7-GT/1635 For ResistanceCoupled Amplifier Chart, click here
Page1 , Page2 , Page3 , Page4

6S31-BR  Page 1

6SA7 PDF File

6SC7 For Resistance CoupledAmplifier Chart, see  6SL7-GT,below
Page 1    Page 2

6SJ7   For Resistance CoupledAmplifier Chart, click here
Page 1    Page 2    Page 3    Page 4    Page 5    Page 6

6SL7-GT (same basic data applies to6188, 6SL7-WGT, also, except for filament voltage, 12SL7-GT) ForResistance Coupled Amplifier Chart, click here
Page1 , Page2 , Page3

6SN7-GTA (within ratingslimitations, same basic data applies to 6SN7-GT, 6SN7-GTB, except for filament voltage, 12SN7-GT,12SN7-GTA) For ResistanceCoupled Amplifier Chart, click here See also 12SN7
Page1 , Page2 , Page3 ,Page4 , Page5

6V6-GTA and equivalents (within ratings) 6V6-GT, 6V6, 6V6-GTY, CV511, 7408
Page 1 , Page2 , Page 3 , Page 4 , Page5
6V6 Miliary Spec Sheet in PDF File

6X4 (6X4WA, 6202) PDF File

12AT7 and equivalents: ECC81, E81CC,6201, etc.  For Resistance Coupled Amplifier Chart, click here
Page 1 ,Page 2 , Page 3 , Page4 , Page 5

12AU7 and equivalents: ECC82, E82CC,6189, etc. For Resistance Coupled Amplifier Chart, click here See also 5963
Page 1 , Page2 , Page 3, Page 4 , Page5 , Page 6 ,
Page 7 ,Page 8 , Page 9 , Page 10 ,Page 11 , Page 12
Download a ZIP file of all 12AU7 pages byclicking here

12AX7 (also applies to ECC83, E83CC,7025, 12AX7A, except for fil voltage, 20EZ7, 6AX7) For Resistance Coupled Amplifier Chart, click here
Page 1 ,Page 2 , Page 3 ,Page 4 , Page 5 , Page6

12AY7...see 6072A below

12DW7...see 7247 below.

12E1
Page1 , Page2Page3, Page4Page5  Page 6 Page 7

12SA7 PDF File

12SK7 PDF File

12SN7-GT PDF File

12SX7-GT PDF File

26 (same as 226, 326, UY226, CX326)
Page 1    Page 2

27 (same as 227, 327)
Page 1   Page2

45 (same as 245,345)
Page 1    Page2

56 see 76

71A (same as 171A, 271A)
Page 1   Page2

76 (56 is the same except 56 filament is 2.5V instead of 6.3V)
Page 1  Page 2

100TH PDF File

211
Page1 , Page2 , Page3 , Page4 ,Page5 ,Page6
Download a PDF file of all 211 pages at once by clicking here

250TH PDF File

300B
Page 1

304TH PDF File

417A/5842
Page 1 , Page2 , Page 3 , Page 4 , Page5

805 PDF File

807 (except for basing, same dataapplies to 6BG6-G, also should apply to 5B/254M)
Download a ZIP file (465K) of all 807 pages by clicking here
Page1 ,Page2 Page3 ,Page4 ,Page5 ,Page6 , Page7 , Page8 ,Page9 ,Page10
Download 22 more pages of curves and harmonic profiles(1.7 meg ZIP file) for 807 by clicking here
(Within ratings, the same curves & profiles apply to 6L6-G/GA/GB/GC as well)
Diagram and data (including transformer winding data) for building a 75W AB2 amp using 6L6 or 807
Page1 , Page 2 , Page 3, Page 4 , Page 5 , Page 6 , Page7 ,
Download a ZIP file of all fgiles on the 75WAB2 amplifier by clicking here
807 Military Specs in a PDF File

811A
Download a ZIP file (378K) of all 811A pagesby clicking here
Page1 ,Page2 Page3 ,Page4 , Page5 ,Page6 ,Page7 ,Page8

845
Page1 , Page2

1625 PDF File See also 807 (same except for filament & basing)

5654 (6AK5W) PDF File

5687 For Resistance Coupled AmplifierChart, clickhere
Page 1    Page 2

5726 (6AL5W) PDF File

5727 (2D21W) PDF File

5750 (6BE6W) PDF File

5751
Page 1    Page 2    Page 3    Page 4    Page 5
Mil Specs for 5751 in PDF file

5879 For Resistance Coupled AmplifierChart, click here
Page1   Page2

5963 (see also 12AU7/ECC82) PDF File


6072A (also 6072, 12AY7) 6072A is same as12AY7 except 6072 has additional low noise specs. For ResistanceCoupled Amplifier Chart, click here
Page 1    Page 2    Page 3    Page 4

6080 (except for filament voltage,applies also to 6082, except for bulb, applies to 6AS7-G,6AS7-GA)
Page1 ,Page2 , Page3 ,Page4
6080WC Military Spec Sheet (PDF File)

6267...see EF86 below

6336A (note, pages are about 100K)
Page 1   Page 2    Page 3  Page 4
All four pages in a PDF file

6360 PDF File

6550A (Note, this is GE data,straight 6550 have 7 watts less anode dissipation, but operatesimilarly otherwise)
Download a ZIP file (345K) of all 6550A pagesby clicking here
Page1 ,Page2 , Page3 , Page4 , Page5 , Page6 , Page7

6240G See 8045G, also see interchangeable type 6CG7/6FQ7

6688 (E180F) PDF File

6922 See 6DJ8/ECC88

7247 (also 12DW7) For curves on Triode #1, see 12AX7. For Triode #2 see 12AU7 or 6C4
Page 1    Page 2

7119 (Same as E182CC ,also interchangeswith 7044)
Page 1    Page 2    Page 3    Page 4

7189 See 6BQ5/EL84

7199 RCA Application Notes are interesting reading for anyone considering using small signal pentodes, even if they're not 7199's.

7308 See 6DJ8/ECC88

7788 (E810F) PDF File

8045G and 6240G
Page 1

E180F See 6688

E810F See 7788

ECC99
Page 1


EF86/6267
Page1 , Page2 , Page 3 , Page 4 , Page5 , Page 6 , Page 7

EL509/EL519 See 6KG6

KT88 (Genelex data. Others may differsomewhat)
Page1   Page2  Page3 Page4  Page5 Page6 Page 7  Page8

KT88 (Original GEC 1956 data sheets)
Page1Page2Page3

KT90 Note, larger (2 pages wide)files, about 80Kbytes each.
Page1 , Page2

Taylor Tubes

T20 PDF File

TZ20 PDF File

T21 PDF File

T40 PDF File

TZ40 PDF File

T125 PDF File

T200 PDF File

For other Taylor tubes, see the entire 1945 Taylor Tube Catalog in PDF format (note, 1.6 megabyte download!)

Power Tube Selection Charts for HighPower AudioAmplifiers
Eimac ,RCApage 1 , RCA page 2

Resistance Coupled Amplifier Charts:Note ifyou already have an RCA tube manual, and if the tubeslisted on the RCA charts in the back are same as here, the pageswill be the same as what you already have. The charts give thetypical voltage output (Eo) and Voltage Gain (VG) you can expectwith the B+ (HT) supply (Ebb), plate load (Rp), cathode resistor (Rk), screen resistor (Rg2, for pentodes), and load of succeedingstage (Rg) given.

RCA:Introduction & Explanation ofResistanceCoupled Amplifier Charts (this is also in the RCAtube manual)
Page1 , Page2 ,Page3

6C5, (wired astriodes) 6J7,6C6, 6W7 12J7, '57

6J7, 6C6, 6W7, '57(as pentodes)

6N7, 6A6, 53

6SL7-GT, 6SC7,6SC7-GT,6AQ6, 6AT6, 6Q7, 6SZ7, 5691, 6SU7-GT, 6188, 6SL7-WGT,6T8, 12AT6, 12Q7, 12SL7-GT, 19T8, ECC35

6SN7-GT, 12SN7-GT,6F8-G, 6J5, 5692, 6CG7, 6FQ7, 8CG7, 7N7, 7A4, 12FQ7

6SJ7, 12SJ7

12AU7,7AU7, ECC82,ECC802, 6C4

12AT7, ECC81, ECC801,CV4024, M8162,6AB4, 12AZ7, 12DT8, 6201, 7690

12AV7, 5965, 7062,E180CC

12AX7, ECC83,ECC803s, CV4004, 6AV6, 12AV6,6AX7, 20EZ7

12AY7, 6072

5687

5879

This chart shows an example of how toset up voltage-amplifyingpentodes for maximum voltage output (as opposed to maximum gain) The example givenis an RCA 5879.

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