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Re: 8KV tank supply from microwave oven components (fwd)
---------- Forwarded message ----------
Date: Thu, 21 May 1998 08:26:37 -0500
From: David Dean <deano-at-corridor-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: 8KV tank supply from microwave oven components (fwd)
-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Tuesday, May 19, 1998 2:19 PM
Subject: 8KV tank supply from microwave oven components (fwd)
>
>
>---------- Forwarded message ----------
>Date: Tue, 19 May 1998 08:42:57 +0300
>From: Marco Denicolai <marco-at-vistacom.fi>
>To: tesla-at-pupman-dot-com
>Subject: 8KV tank supply from microwave oven components
>
>Because attached files are not forwarded, here is an ASCII drawing of
my
>tentative power supply. It is made of 2 sets of transformer + diode +
>capacitor from two microwave ovens. The transformers give about 2KV,
which is
>doubled with capacitor + diode to 4KV. Put two of these is series and
you
>get 8KV. See the picture below:
>
> | |
> --------|| ||-----| |----*---------- -
> * || || * | | |
> || || -----
> 220V || || \ /
> || || \ /
> || || -----
> || || |
> --------|| ||------------*--- GND
> |
> |
> --------|| ||------------*
> * || || * |
> || || -----
> || || \ /
> 220V || || \ /
> || || -----
> || || | | |
> --------|| ||-----| |----*----------- +
> | |
>
>If you are carefull with transformer phasing, you get 8KV pulses at
>25 Hz (Europe = 50Hz 220V!). Connect the phases wrong and you'll get
>4KV pulses at 50 Hz. Between + and - terminals I can get a 0.37"
continuous
>spark between a simple 2-screw gap.
>
>Any problem to feed a TC with this (forget about filtering for now)?
>
>
>
>
>_______________________________________________________________________
_
>
> Marco Denicolai Vista Communication Instruments,
Inc.
> Hardware Development Manager www.vistacom.fi
>
> marco-at-vistacom.fi Kaisaniemenkatu 13 A
> fax: +358-9-622-5610 SF-00100 HELSINKI
> phone: +358-9-622-623-15 Finland
>
> Remember, Murphy was an optimist! I am not...
>_______________________________________________________________________
_
>
What about a simple half wave rectifier?
___________>l___________(+)
___ [ll ] l
[ll ] l
[ll ] l
pri1 [ll ] sec1 l
[ll ] l
[ll ] l
_____ [ll ] l
l l
lground ---------
l _______cap
____[ll ] l
[ll ] l
[ll ] l
pri2 [ll ]sec2 l
[ll ] l
[ll ] l
___[ll ] l
-----------------------------------( - )
this would give approx. 6.8 kV
would not use microwave oven capacitors though.