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Re: Tube Coils (fwd)
---------- Forwarded message ----------
Date: Sat, 22 Feb 1997 02:00:00 -0800
From: Open Minded <unknown-at-apc-dot-net>
To: Tesla List <mod1-at-pupman-dot-com>
Subject: Re: Tube Coils (fwd)
Tesla List wrote:
>
> ---------- Forwarded message ----------
> Date: Fri, 21 Feb 1997 16:39:49 +1200
> From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
> To: mod1-at-poodle.pupman-dot-com
> Subject: Tube Coils
>
> Hi all,
> I have found a couple of brand new 805's lurking in a dusty
> corner. I have also found the data for them. From comments I have
> heard it would seem they are rather far removed from the 803's but
> definitely a cut above 807's. I would welcome comments from anyone as
> to their suitability for a tube coil. They are triodes which makes
> things easier. I guess the idea is to operate the pair in parallel in
> Class C. I have designed audio valve stuff using the characteristic
> curves before, but not transmitting-type gear. Suggestions gratefully
> received.
>
> Malcolm
Malcolm -
My vacuum-tube driven coil uses a pair of 805's, and runs great with
hot, flaming 6-8" discharges. Got some pic's of it on the funet server:
http://www.funet.fi/pub/sci/electrical/tesla/pictures/turner
- Brent