Re: CW coil top terminals?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>

Hi John,

That works pretty good.  I also think someone I talked to off list will
send me a ceramic insulator that will really keep the heat off.  I don't
have a top toroid (should I get on??) so I used a brass bolt with some
fender washers at 200 watts:
http://hot-streamer-dot-com/TeslaCoils/MyCoils/CWCoil/P1280003.jpg
http://hot-streamer-dot-com/TeslaCoils/MyCoils/CWCoil/P1280004.jpg

It works pretty good for the time being.  At last I got the CW running
again tonight. :-))
http://hot-streamer-dot-com/TeslaCoils/MyCoils/CWCoil/P1280005.jpg

Still needs lots of work but at least it is running!

Cheers,

	Terry


At 05:15 PM 1/28/2001 -0600, you wrote:
>Hi Terry
>I use a brass 1/4 bolt 5" long from the hole in the toroid bottom. The
>toroid also acts as a heat sink/cooling radiator.
>I never had a problem with this system.
>John W. G.
>
>comsciprof-at-ameritech-dot-net
>www.scifair-dot-org
>----- Original Message -----
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: <tesla-at-pupman-dot-com>
>Sent: Sunday, January 28, 2001 4:14 PM
>Subject: CW coil top terminals?
>
>
>> Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>
>>
>> Hi All,
>>
>> I am working on my CW coil and I was wondering what people are using for a
>> top terminal on CW coils?
>>
>> I guess it should be fairly small but I was wondering what would take heat
>> well.  It is a 900 watt (delivered to the arec) coil and I hope to get it
>> doing the staccato stuff soon.  Would like a small brass drawer pull be ok
>> or is the something better?  The coil will melt a pretty good diameter
>bare
>> wire.  I may need cooling fins under the terminal since the top of the
>coil
>> is PVC or I could add a ceramic standoff insulator if I can find one.  I
>> could also have a tungsten needle point if that would be best.
>>
>> Any thoughts are welcome here.  I hope to soon get this coil running from
>> an arbitrary waveform generator.  It is 350kHz but the generator can
>> control the power level and I can play with any power envelope I want then
>:-))
>>
>> Cheers,
>>
>> Terry
>>
>>
>