[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: oudin coil (fwd)
---------- Forwarded message ----------
Date: Sun, 01 Jul 2007 15:55:45 -0400
From: Dave Goodfellow <dgoodfelo@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: oudin coil (fwd)
I thought that Oudin coils were generally thought of as being on the same
form, and having the bottom turn of the secondary bonded with the primary.
Someone please correct me if you feel that this is not an Oudin type coil...
All the design is based on Tesla's coil, except that I didn't have to hound
my buddy to cut primary blocks for me on his mill.:-)
Dr. Resonance has described connecting the inner turn of the primary with
the bottom turn of the secondary when using single horned pole pig
transformers. That makes the bottom/inner turns both grounded.
The coil you see that I built here is also tied to ground where the top of
the primary meets the bottom of the secondary.
I felt that this coil worked well for being powered by a 5/20 nst.
I like the way the bulb of the chandelier glows when the coil is operating
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
Sent: Sunday, July 01, 2007 8:58 AM
Subject: Re: oudin coil (fwd)
> ---------- Forwarded message ----------
> Date: Sun, 01 Jul 2007 00:13:36 -0700
> From: Frank <fxrays@xxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: oudin coil (fwd)
> Tesla coils have the secondary independent from the primary, a true
> transformer. Small TC's are actually connected in a Oudin
> configuration where one end of the secondary is connected to the
> primary. Larger coils have the bottom end of the secondary connected
> to an independent ground.
> Oudin coils are an autotransformer in configuration where one end of
> the secondary is connected to the primary, in many cases the coil is
> wound with a single diameter wire on the same coil form and the
> primary is just some of the lower windings connected to the supply.
> The big difference was Oudin coils were of a lower frequency and
> produce LOTS of corona and widely used in electrotherapy.
> TC's are typically of a higher frequency and produced a hotter RF type
> Inputs could be the same in both coils with dramatic differences in
> Typically the ratio for coils is:
> Tesla coil: the secondary is 3 times in length of its diameter. A 12"
> dia form should have be 36" long for example.
> Oudin coil: the secondary is approx 1.5 times in length of its
> diameter. A 12" dia form should have a 18" long for example.
> At 08:24 PM 6/30/2007 -0600, you wrote:
>>---------- Forwarded message ----------
>>Date: Sat, 30 Jun 2007 11:03:55 -0400
>>From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
>>Subject: oudin coil
>> What is an Oudin coil? Somebody told me you can put a much higher
>>input voltage into one that a conventional TC, therefore getting a higher
>>voltage out, but I do not know if they were correct. Thanks.
>>Hotmail to go? Get your Hotmail, news, sports and much more!