Glenn Baddeley - Valve Data

Contents

[Electronics Contents Page] [Directory of Australian Valve Suppliers] [International Valve Suppliers]


My interest in Thermionic Vacuum Tubes

I constructed my first audio power amplifier in year 9 at a small country school in Australia. It used a 6SJ7GT driver and a 6V6GT single ended output stage and delivered a measly 4 watts into a 6 inch speaker. All the parts were salvaged from old valve radios. A strange fascination for designing and building circuits using glowing bottles has continued in the 25 odd years since then.

My collection currently consists of over 3,000 valves, covering over 700 different types. I have also amassed hundreds of old electrical engineering and data books going back to the 1880's, with most of them concentrated in the 1930's and 1940's. My collection of "Radio and Hobbies", "Radio, TV and Hobbies" and "Electronics Australia" and "Electronics Australia Today" magazines fills another 8 metres of bookshelf space. Too bad the magazine went belly-up in 2001 after only a few issues of EAT.

Glenn

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Data and Equivalents Service

If you are having problems finding valve data or equivalents then try me out, I may be able to oblige with some free information from my many data books and equivalents lists. Expect a repsonse within 3 to 7 days, as some research may be involved.

Glenn

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Links to Valve Data Search Engines

http://tdsl.duncanamps.com/
Tube Data Sheet Locator 3 is a database search engine containing information on thousands of tubes. It provides pin-outs, substitutes, short data, ratings, applications, schematics, and references to data sheets on other sites. Very comprehensive. It is maintained by Duncan Amplification and sponsored by disk2disk.com.
http://hereford.ampr.org/cgi-bin/tube
Online searchable database containing thousands of tubes. Returns tube type, pin-out, characteristics and typical operating conditions. Maintained by Bill Beech.
http://www.nostalgiaair.org/Tubes/
Nostalgia Air, Space Coast USA. Tube Substitution and Characteristics Guide. online searchable database. Currently the database includes substitutes for over seven thousand American and European tubes; characteristic charts are slowly being added. Returns description, substitutions, base diagrams and notes.
http://catalog.rell.com/
Online catalog of Richardson Electronics, Ltd. Can search for part numbers, returns specifications and sheets if any.

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Links to Valve Data Programs

http://members.aol.com/EPSweb/vtdata/
The VTDATA software package is a complete vacuum tube manual on your computer from EPS/Solutions, PA, USA. It is sold for US$29 and online examples are shown.
http://www.audiotubes.com/tubesave.htm
Tube Database Version 3 is a freeware equivalents program for MS-DOS which can be downloaded in a ZIP file.

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Links to Miscellaneous Valve Data Pages

http://www.nzvrs.pl.net/aaa/cv_register.htm
A simple CV Register cross reference for Commercial Valve numbers.
http://www.g8wrb.org/
Power Amplifiers, tubes and Related Items - G8WRB. Here you will find data on RF power tubes, as well as application notes of interest to amateurs using tubes (valves) for power amplifiers. Generally data is included only for tubes with anode dissipations of between 100W and 50kW.
http://www.drtube.com/tubedata.htm
Dr. Tube's Data Sheets for about 70 common valves of various constructions. Links to about 12 other sources of valve data sheets.
http://www.nmr.mgh.harvard.edu/~reese/
Tim Reese's Home Page has links to 10 different sites for Electron Tube Manufacturer's Data, and also lots of links to Electron Tube Audio Discussion Groups & Magazines & E-Zines, Electron Tube Vendors, Electronic Parts Dealers that cater to Tube Audio, Tube Schematics Online and Tube Projects Online.
http://www.worldtubeaudio.com/directory/categories/kategorie_62.htm
Links to many valve databases at the World Tube Audio Portal.
http://tubesall.hihome.com/tube.htm
Links to valve data sources at JONG WOO'S PAGE.
http://www.qsl.net/dl7avf/roehren/roehren.html
Electron Tubes and Valves, Franz Hamberger, Berlin Germany. Categorised links to information on hundreds of valve types. Articles and information on amplifiers, applications, history, glossary, links. In German and English.
http://www.wps.com/archives/tube-datasheets/index.html
Electron tube database - Scanned datasheets of over 2000 electron tubes from original data catalogs of 1958 - 1961.
http://www.firebottle.com/ampage/tube_data/
Tube Age - tube amps / music electronics - Vacuum Tube Data on about common audio 20 tubes.
http://www.vt52.com/
Data sheets for about 80 valves. Also VT equivalents, tube information, sources, tubes for sale. (Netherlands)
http://www.xs4all.nl/~tgale/valves.html
Data, pin-outs and basic characteristics for about 200 old valves. (Netherlands) (36K)
http://www.algonet.se/~janax/tubedata.htm
About 40 US and European data sheets. Links to many other tube data and suppliers sites. (Sweden)
http://www.machmat.com/sheet/index.htm
MachMat has scanned data sheets for about 70 tubes. Links to a dozen other tube data sites. (Netherlands)
http://www.svetlana.com/docs/dictionary.html
Listing of all Svetlana tubes (CIS) with links to data sheets.
http://www.audiomatica/tubes/
The Tube Directory by Audiomatica. Real measured data for about 30 tubes. (Italy)
http://www.triodeel.com/tubedata.htm
Triode Electronics (IL, USA) presents scanned data sheets on about 30 audio tubes. RC amplifier design charts from RCA tube manual. Various articles on tube audio amplifiers.
http://pw2.netcom.com/~wa2ise/radios/penciltubes.html
Sub-miniature "pencil" tube data, including description, pinout, heater V&A, cathode resistor, G1 volts, Screen V,ma, Plate V,ma, Gm, Plate resistance, Load. (37K)
http://www.goldaero.com/tubelib.html
Gold Aero tube data library contains data for only 3 tubes: 6C33C-B, E34L and KT99A.
http://df6na.mayn.de/~df6na/tubes.htm
DF6NA Tube Data-Sheets for about 50 Russian valves.
http://www.next-power.net/next-tube/datasheets.php3
NextTube has 86 data sheets for 50 Russian valves and a list of USA equivalents.
http://www.diyparadiso.com/tdata.htm
Tube DIY Paradiso (Belgium) has data sheets for 6SN7, 6SL7, 6BL7, 6BX7, ECC8100, 3A167, EC90, 2C51 and 6DN7
http://www.geofex.com/tubeampfaq/taffram.htm
Musical Instrument Tube Amp Building, Maintaining and Modifying FAQ - contains tube substitutions in Section 14.

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Links to Miscellaneous Valve Data Text Files

No fancy graphics or frames here...
http://www.nic.funet.fi/pub/sci/electrical/tubes/00TUBES
The High-Voltage Tube Data Archive, maintained by Kristian Ukkonen. Scanned data on about 30 high voltage tubes, such as x-ray, transmitter, switching, pulse. (Finland)
http://www.vacuumtube.com/FAQ.htm
VACUUM TUBE VALLEY, SUNNYVALE, CA. VACUUM TUBE REFERENCE AND USAGE GUIDE lists dozens of common tubes with a short description and who makes them. (38K)

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General Links

http://www.worldtubeaudio.com/directory/categories/kategorie_62.htm
Links to about 30 valve data pages and databases at the World Tube Audio Portal (Germany).
http://www.askjanfirst.de/link.htm
An interesting list of valve links at Ask Jan First (Germany).
http://www.tubecollectors.org/
Tube Collectors Association (USA).

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Australian Valve Manufacturers

The following time line summarises the history of valve (thermionic vaccum tube) manufacturing in Australia. Some dates may not be exact. From the 1950's, valve type numbering used the American scheme almost exclusively. American identical types and many Australian custom types with new numbers were produced.

Year(s)CommentRef.
1913 Amalgamated Wireless (Australasia) Ltd. (AWA) formed, to take over Australian interests of Marconi Co. and the German Telefunken Co. and their patent rights in this country.JS97, MPDB09
1920 AWA markets the "Expanse" triode, probably manufactured in U.S.A. as identical to their "AudioTron" triode, and imported into Australia. It manufactures the "Expanse B" triode as a locally patented improvement of the "Expanse", at a small factory in Clarence Street, Sydney (NSW), employing 6 people in production and 2 in R&D.JS97, MPDB09
1923Since 1920, AWA has produced up to 4,000 valves per year. New factory is opened in Knox Street, Sydney (NSW).MPDB09
1923G & R market a patented triode, designed by A.J. Garrod and S. Radcliff of Sydney (NSW), but it was not a commercial success.JS97
1924AWA obtains license from American company RCA to manufacture selected valves, which continued to the end of production in the 1970's.JS97, MPDB09
1925AWA manufactures AWA33 and AWA99, similar to UV-199 but in different bases. Also produces 99X (equivalent to UX-199), 101A (UV-201A), 101X (UX-201A).JS97
1927AWA makes 6 battery valve types, including the 4 types from 1925. 32 other types are imported.JS97, MPDB09
1932AWA establishes a separate company, Amalgamated Wireless Valve Co. Pty. Ltd. (AWV), to expand valve manufacturing activites, following an agreement between AWA, RCA, International General Electric (IGE) and Westinghouse. RCA brand name Radiotron was adopted by AWV. RCA actually discontinued use of Radiotron brand soon after.JS97, MPDB09
1932AWV manufactures the first Radiotron brand valve in Australia, the type 80 rectifier. Over the next 7 years the local range is expanded to 30 receiving types.JS97, MPDB09
1932AWV manufactures types 57, 58 and 2A5.JS97
1936AWV commences manufacturing radio transmitter valves.JS97
1936Philips Electrical Industries Pty. Ltd. commence valve manufacture in Australia. The Miniwatt Electronics Division factory at Camperdown (NSW) produces a limited range of American valves. Head office in 1952 is 69-73 Clarence Street, Sydney (NSW). Miniwatt Electronics Division office is at 20 Herbert Street, P.O. Box 34, Artarmon (NSW) in 1960.JS97, VDB52
1939Standard Telephones & Cables Ltd. (STC) sets up a small valve manufacturing operation in Sydney (NSW). STC was originally formed from Western Electric Co. (Australasia) Ltd. in 1925. STC produces valves for the Australia Post Office (PMG) with type prefix SY for Sydney. Eg. SY4101D is Western Electric type 101-D, made in England as 4101-D.JS97
1939Australia is largely self sufficient for most commonly used receiving valves.JS97
1939 - 1945During World War 2, AWV reaches peak production of 175,000 valves per month, including Klystrons and cavity Magnetrons.JS97
1942 AWV builds a new 42,000 square-foot factory on Parramatta Road, Ashfield (NSW), to meet the huge war time demand. Administration office is at 47 York Street, Sydney (NSW).MPDB09
1939 - 1945During World War 2, STC produces large numbers of military valves of mainly Western Electric or British STC design, although some unique Australian types were made.JS97
1946Philips moves manufacturing from Camperdown (NSW) to Tapley's Hill Road, Hendon (SA). Adds production of some 6.3 Volt side-contact European valves.JS97
1946AWV commences manufacturing 7 pin miniature valves, releasing four 1.4 Volt battery filament types.JS97
1946 Nov.AWV is manufacturing 62 types of valve. 11 other types have discontinued manufacture with limited stock available.RPL46
1947AWV commences manufacturing 7 pin and 9 pin miniature valves with 6.3 Volt heaters.JS97
1948Philips is manufacturing 74 types under the Miniwatt brand, only 6 of these are of European design.JS97
Early 1950'sPhilips manufactures American type 7 pin miniature valves, initially 1.4 Volt filament, followed by 6.3 Volt heater types.JS97
1956AWV builds a new 95,000 square-foot factory at 348 Victoria Road, Rydalmere (NSW). This plant initially produced B&W television picture tubes.MPDB09
1957AWV moves all its operations to the Rydalmere site.MPDB09
1950'sPhilips uses the Mullard brand. Philips valves made in the Hendon factory used imported cathode assemblies made in Blackburn, Lancashire (UK). Philips sources valves manufactured by Ei in Yugoslavia.VA2009
By 1958Philips is manufacturing a large range of European type 9 pin miniature valves, marketed under American type numbers.JS97
1964Philips production factory is still in operation at Hendon. Miniwatt Electronics Division has branch offices in Adelaide, Brisbane, Canberra, Hobart, Melbourne, Newcastle, Perth, Sydney, Wollongong.MTD64
Late 1970'sAWV and Philips phase out valve manufacturing in Australia. AWV imports valves from Japan.JS97

References

JS9770 Years of Radio Tubes and Valves (2nd.Ed.), Stokes, John. W., 1997, Sonoran Publishing LLC, Chandler, Arizona, USA, 271 p.
MTD64Miniwatt Technical Data (7th.Ed., 2nd.Printing), Philips Electrical Industries Pty. Ltd., 1964, Miniwatt Electronics Division, Artarmon, AU, ~400 p.
MPDB09History of AWV Semiconductors, Mark P D Burgess, 2009, Link to web page
RPL46Radiotron Receiving Valve Data Book, Price List, Philips Electrical Industries Pty. Ltd., November 1946, A.W.V. Co. Pty. Ltd., Sydney, AU, 2p.
VA2009Mullards Made In Australia?, 2009, Link to thread 3004 on vintageamps.com
VDB52Philips Valve Data Book (4th.Ed.), Philips Electrical Industries Pty. Ltd., 1952, Radio Valve Application Division, Sydney, AU, ~210 p.

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Valve Manufacturer Date Codes - AWV Super Radiotron

No information yet....

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Valve Manufacturer Date Codes - Philips Miniwatt and Mullard

1956 to 1961

Code is marked near base in 2 rows.

1961 and later

Code is marked near base in 2 rows.

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Valve Manufacturer Date Codes - STC

No information yet....

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Copyright © Glenn Baddeley 2006, 2014
http://home.pacific.net.au/~gnb/elec/valvedata.html was last updated 25 October 2014.
Report problems and send comments to Glenn Baddeley.