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#1
February 22nd 07, 09:31 PM
posted to rec.radio.amateur.boatanchors
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Tube question
Metal tubes were the first octal based tubes (1935). The GT came later.
Tube Lore, by Ludwell Sibley (http://www.eht.com/oldradio/tubelore/) is a must have if you want to go deeper into the history of tubes. The 6SN7 was always a GT. Steve. -- Steven D. Swift, , http://www.novatech-instr.com NOVATECH INSTRUMENTS, INC. P.O. Box 55997 206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA |
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