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Re: VTTC using 4-400's?



Original poster: mddeming@xxxxxxx
Hi Brad,

You might also want to avail yourself of a copy of RCA Manual TT-5, "Transmitting Tubes". Reprints available from Antique Radio Supply Tempe, Arizona. It has specs, theory and diagrams on tubes up to 4KW each.

Matt D.

-----Original Message-----
From: Tesla list <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Sent: Thu, 12 Jan 2006 12:49:04 -0700
Subject: Re: VTTC using 4-400's?

Original poster: "Brian" <<mailto:ka1bbg%40webryders.net>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" <<mailto:tesla%40pupman.com>tesla@xxxxxxxxxx>
To: <<mailto:tesla%40pupman.com>tesla@xxxxxxxxxx>
Sent: Wednesday, January 11, 2006 8:37 PM
Subject: Re: VTTC using 4-400's?

> Original poster: Brad Stockdale <<mailto:brad%40greenepa.net>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 e ver 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
>
>
>