Re: VTTC using 4-400's?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Brad Stockdale <brad@xxxxxxxxxxxx>

Hello all,

   It's been quite some time since I have worked on any coils or 
other high voltage fun at all... I am thinking of building a VTTC, 
however I have not ever made one before -- just normal spark gap coils...

   I was given about a dozen 4-400 tubes that were taken out of 
service as part of the routine maintenance of a local radio station's 
AM transmitter. Basically they pull the tubes based on the number of 
hours on them, not by their condition... Therefore, while some of the 
tube's lifespan is used up, they may still work perfectly fine in a VTTC.

   Has anyone here made a coil using 4-400's? Anyone have any words 
of wisdom? I just hate to let these tubes sit here and collect dust 
if I can put them to use in a tesla coil.

Thanks,
Brad