Re: Lifter project. (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 13 Oct 2004 23:59:43 -0700
From: Richard Hull <rhull@xxxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Lifter project. (fwd)

The monitor board will work without the CRT.  Be advised that virtually
every TV monitor is not isolated from the wall voltage and that the ground
on the board must be found and made sure to be connected to the wall outlet
and used as the return for the high voltage.

The average voltage of a simple color CRT is about 17-24 kilovolts depending
on the size of the crt.

Unfortunately, due to its design, you cannot adjust the voltage easily out
of a standard flyback circuit.  It is possible with some examination of the
circuit, but it is not trivial for the none electronic buff.  The voltage is
either zero or full voltage.

Richard Hull


----- Original Message -----
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: "hvlist" <hvlist@xxxxxxxxxxxxxxxxx>
Sent: Wednesday, October 13, 2004 7:52 PM
Subject: Lifter project. (fwd)


> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Tue, 12 Oct 2004 23:52:14 -0500
> From: Adam Britt <Beans45601@xxxxxxxxx>
> To: hvlist@xxxxxxxxxx
> Subject: Lifter project.
>
> Hello, My name is Adam, and for my senior science project, i am doing
> "What is the ratio between efficiency and area of the grounded plate
> of an ion lifter?". But, i have a couple of questions.
>
> I work at a childrens museum, and for a class, the kids take appart
> computer monitors, so i have a lot at my disposal. But, i don't want
> to have to carry the monitor around with me, so, if i disconnect all
> the wires from the main circuit board, with the flyback, except for
> the ac in, and the HV out, will it still work, or does it need to be
> hooked up to the crt and all that good stuff to work? Also, what is
> the usual output of a computer monitor, and is the actual voltage ever
> printed inside the case? One more question, if i hook up a couple of
> the flybacks together, will this just destroy them all real quick, or
> should i do this to get more amps, out.
>
> Thank you for everything.
> -Adam
> KD5WIT
>
>