Information on the 6L6 look-alike, and where to get the last remaining tubes.

Charts for 6C4, 6V6, 807, G.E. diodes, and triodes.

Tube Data for the 304TL and other similar tubes.

Information about electron tubes, and valves, from many parts of the world.

Tube data and other information from this company in Germany. Sales outlets in several countries including USA.

Valve data includes various types which may be used in the Racal RA17L HF receiver.

Brent Jessee Recording Tube Sales and information. Plenty of data and articles here too.

The site has some technical data including a reprint of the old text The Care And Feeding Of Power Grid Tubes which used to be given away by Eimac.

Cathode Ray Tube data - scanned images from original datasheets. Some are from RCA HB-3 handbook.

Tube datasheets on-line.

Data search, pin-outs and substitutes for 13,000 tubes. Includes links to many schematics.

From the WPS Archives Datasheet database, 1958 - 1961

Substitution guide, type, pin-outs and heater voltages for many tubes.

Type index has many useful pages listed.

Frank's Electron tube Pages - more data sheets. This one contains data on tubes from Poland Germany, USA and China.

Data for electron tubes from Berlin in Germany available in both English and Deutsch.

Tube data, info and links. From the Netherlands.

Lots of useful information about many tubes.

Some great tube history and data!

An extensive collection of pictures and information of old, unusual, and unique vacuum tubes.

Includes FAQs, tube data sheets, tube substitutions, and tubes vs. transistors.

Radio valves (tubes) with data and many related links.

Frederick W. Chesson presents one of the best military VT- tube to commercial tube conversion tables.

Online data for many tubes.

General Guide to tube specifications on-line

Audio Tube Data from Italy. Comprehensive site with a lot of very useful information.

Tube data book online - Main Index.

Guide to tubes used in shortwave broadcast transmitters with links to and information about manufacturers, rebuilders and suppliers of such tubes.

Great WW2 era RF transmitting and audio power tube.

List of tube dealers, tube data, and a list of sources for parts and accessories.

Comprehensive European tube database in German and English.

Roy Schmaus presents tube information, and articles about the R1155 receiver.

Tube data and audio amplifier schematics online.

Very useful service from Duncan Amps

From J.W. Kwang in Korea

Look up data, pin-outs and curves for almost 3,000 tubes.

A huge site with lots of useful information.

Tube audio projects and datasheets

Pencil tube data and pin-outs.