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Re: Big Triode Tubes
In a message dated 96-08-30 01:35:06 EDT, you write:
<<
> Having a hard time trying to find those giant high power
> tubes for our Tesla coils. Inspect this sight:
> "http://www.svetlana-dot-com/".
> Apparently these tubes are still manufactured in Russia. I
> found an RCA 811A equivelent in there industrial stocks. They
> also have some tubes that I've never heard of, at huge
> voltages.
While there can be no doubt that the 811A is one of the most
popular tubes for use in CW Tesla coils I have doubts that this
tube is really the best solution. With the increased difficulty
in finding 811A in good condition at reasonable prices it would
seem prudent to find a better substitution. The "unheard of"
tubes sound interesting.
For my first tube coil I am planning on using the rugged and
powerful "light-house" triode tubes typically used in commercial
RF induction heaters. After speaking with an induction heating
engineer I am convinced that these type tubes are all but perfect
for high powered tube Tesla coils.
Try sending for a catalog from: Vacuum Tube Industries, Inc.
506 North Warren Avenue, P.O. Box 2009, Brockton, MA. 02405 USA
tel: 508-584-4500 tel: 800-528-5014 fax: 508-584-0096
They specialize in new and rebuilt 450 KC power tubes for
commercial RF induction heaters and carry a full line of new and
used plate & filament transformers, cooling loops, control
systems, etc.. These people have been very nice to me on the
phone and have a super catalog with many "one-off" rebuilt power
tubes that can be picked up cheaply.
my 2 cents
Richard Quick >>
Richard,
Please keep us posted. I also want to build a tube driven Tesla coil someday
and am interested in your project.
Ed Sonderman