TubeTronic
tubetronic.com
http://www.tubetronic.com/

Phamitech International Company Ltd
Exporter of electron tubes, TWT, valves, thyratrons, magnetrons, klystrons, transmitting tubes, heating tubes, vacuum interrupters and X-ray tubes made in China
http://www.phamitech.com

Daily Electronics
Retailor of electron tubes and vacuum tubes, plus new and hard-to-find obsolete tubes.
http://www.dailyelectronics.net/

PSP-Tubes.com
PSP Tubes for Paint Shop Pro 6, 7 and 8. Free downloads. Tutorials. Members area for unlimited downloads.
http://www.psp-tubes.com/

Tubes, Sheets and Singularities in Fluid Dynamics
NATO Advanced Research Workshop, sponsored as an IUTAM Symposium. Zakopane, Poland; 2--7 September 2001.
http://www.igf.fuw.edu.pl/IUTAM/

Zeitmann tubes
We have NEW and used ECC81 ECC82 ECC83 ECC85 E88CC EL84 and EF86 Tungsram vacuum tubes.
http://www.zeitmann-tubes.com/

Fluid Power Net International
A worldwide Network of Fluid Power Laboratories. Publishes the International Journal of Fluid Power and maintains the WWW Virtual Library on Fluid Power. Software and education links and a list of publications.
http://fluid.power.net

Fluid Mechanics and Fluid Power 2004
31st National Conference on Fluid Mechanics And Fluid Power. Jadavpur University, Kolkata, India; 16--18 December 2004.
http://www.jadavpur.edu/conference/conference.htm

TAI Services
NDT nondestructive inspection of tubes, eddy current testing on chiller tubes, flux Leakage testing on boiler tubes.
http://www.taiservices.com

Vacuum Tubes, Inc.
Worldwide sellers of vacuum tubes and electron tubes for audio, radio, and industry
http://www.vacuumtubesinc.com/