Triode Electronics (Popularity: )
http://www.triodeel.com/ Tubes and parts for Hi-Fi, Radio and Guitar. Tube data and amp schematics online, links to tube amp information on the web Category:
Science - Technology - Electronics - Reference
Manley Laboratories, Inc. (Popularity: )
http://www.manleylabs.com/ Designer and manufacturer of pure vacuum tube processors for professional audio. Also high-end home HiFi equipment. Category:
Business - Arts and Entertainment - Tools and Equipment - Manufacturers
Machmat Tube (Popularity: )
http://www.machmat.com/ Information about tubes. Tube datasheets, tube schematics, tube code explanation, tube sales, and tube schematics explained. Category:
Business - Electronics and Electrical - Components - Vacuum Tubes
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