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

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

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

The Conrad Company
Manufactureres of Heated Hoses, Heat Blankets and flexible electric heaters.
http://www.conrad-co.com/

Horst GmbH.
Das Unternehmen ist in der Entwicklung, Herstellung und Vertrieb von elektrischen Heizelementen tätig, die vorwiegend im Bereich der Forschung und Industrie eingesetzt werden.
http://www.horst.de

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

Custom Electric Manufacturing Co.
Custom Electric Manufacturing makes and repairs heating elements for industrial furnaces.
http://www.custom-electric.com

TJ's Plumbing and Heating Inc.
TJ’s Radiant Heat Plumbing and Heating provides air conditioning and Snow Melting in Boston Massachusetts and New England
http://www.tjsradiantheat.com/