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Re: Strange Black Box...
From: nick[SMTP:nick-at-erie-dot-net]
Sent: Thursday, June 26, 1997 1:26 PM
To: Tesla List
Subject: Re: Strange Black Box...
At 11:55 PM 6/25/97 -0500, you wrote:
>
>From: Brandon Doughan[SMTP:fiveht-at-well-dot-com]
>Sent: Wednesday, June 25, 1997 6:52 AM
>To: tesla-at-pupman-dot-com
>Subject: Strange Black Box...
>
>
>
>Hi all-
>
> I recently bought a 15KV transformer but am a little confused as
>to how to power it and whether it's ac or dc output. Let me describe it:
>
> It's approx. 2X4X6 inches. On one side it has three terminals.
>The first is labeled "J1" and is a male socket with three rather thin
>prongs. Im guessing these are +, -, and ground for a 120VAC input,
>though they do seem kinda small for 120. This socket has groves such
>that it could only be connected in one orientation to it's mate.
>
>The second is labeled "J2" and is obviously a HV output; having a thick
>rubber grommet around a thickly insulated wire. The end has one of those
>suction cup things and I'm guessing it was ment to power a CRT. CRTs are
>powered by DC, aren't they? This makes me think it's got a DC output.
>
>The last terminal is a small metal knob labeled "TP", which I'm quite sure
>is a center tap. This makes me think the output is AC.
>
>Also, on another side is the following info:
> MODEL: 164A
> SER. NO.: 152
> VENUS SCIENTIFIC INC.
> FARMINGDALE, NY
> HUGHES-FULLERTON
> PART NO. 718542-2
>
>So, what do you all think? If I can get it connected properly, and "J2"
>is 15KV output, what would be the other terminal? 15KV relative to
>ground? To "TP"?
>
>As always, thanks for your help! Brandon
>
>
>
Hi Brandon
What you described sounds like a high voltage stage out of an old
portable tv. It is probably a step up transformer with a tripler connected
to it. The output of a tripler is dc but the input is ac.
The way I look at it is that "tp" is the ac input for the tripler.
That would be my best guess.