Re: VTTC using 4-400's?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Brian" <ka1bbg@xxxxxxxxxxxxx>

Hi, yes i think you can run them as triodes, get hold of John Freau he is
the VTTC guy on this list. cul brian f.
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, January 11, 2006 8:37 PM
Subject: Re: VTTC using 4-400's?


> 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
>
>
>