If I had to build a rotary gap on a budget and couldn't afford G-10 Id look
around for some old Melmac dinner plates,epoxy them together with a layer of
fiberglass in between and bolt that together with some brass threaded rod or
cut bolts for the electrodes and turn them down right in your rsg on the
mandrel it is mounted on. You could fashion a nice cutting tool out of an
old file and use a wooden block as your tool rest. Those old plastic/plates
took a lot of heat , were indestructible, and had similar heat tolerance as
Bakelite. In fact I even managed to burn one once and it smelled a lot like
Bakelite. Now I am not sure about it's RF performance characteristics but
since Bakelite was used in a lot of old time transmitters think it might be
acceptable. Just throwing some ideas out there at ya, Good luck with your
budget coil. At any rate I would not use CD's that would be a disaster
waiting to happen.
-----Original Message-----
From: Christoph Bohr
Sent: Sunday, December 29, 2013 7:26 AM
To: Tesla Coil Mailing List
Subject: Re: [TCML] just a thought
Dear Reverend.
I understand your point on working on next to no budget, but as you are
- accordng to your website - not located on a remote island with nothing
but stones and sand you still might as well dig better materials an methods
of using them. A good approach for using material for a RSG that lacks
the neccessery strength for the job, is to make use of a metal ring on an
insulating hub., so the requirements of the task are shared among two
materials which are each suitable of withstanding the forces involved.
Make the hub from any insulator you like and attach a metal disk ( kitchen
plate, smal rim, tin lid... both simple to find and there you go...
my 2 cents for your winter project
regards
Christoph Bohr
Well, obtaining the proven heat-resistant raw material will always be
the ideal, however, I'm working with little to no budget. So it will
for now, what's laying around, and raiding of the junk box.
Input appreciated, though. :)
-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
Behalf Of Fritz W. Egli
Sent: December 28, 2013 7:51 AM
To: 'Tesla Coil Mailing List'
Subject: Re: [TCML] just a thought
Dear Christopher
Instead of spending valuable time to build a rotary disc out of a bundle
of
CD`s, I would rather obtain the proven, heat resistant raw material,
with
the required mechanical and electrical strength and the right thickness
and
the raw dimension for machining the right diameter. Guaranteed less
effort
to obtain the functioning, perfect, safe result.
Fritz
-----Ursprüngliche Nachricht-----
Von: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] Im
Auftrag
von Reverend Fuzzy
Gesendet: Freitag, 27. Dezember 2013 18:48
An: Pupman Tesla List (Pupman Tesla List)
Betreff: [TCML] just a thought
As I was waiting for the end of this morning's, eh, constitutional, I
was
thinking... I have a bunch of old CD's laying around... if I were to
sand
the silver coating off, and glue 3 or 4 of them together, (properly
centered
of course), would it be suitable as the rotor in a rotary spark gap for
a
low-power SG coil ???
Has anyone actually tried this? Just a thought, so no biggie if it's
goofy.
---
Reverend Christopher "Fuzzy" Mayeux
Pastor, MSB Ministries
Hattiesburg, MS
http://www.msbministries.org
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla
-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.3462 / Virus Database: 3658/6956 - Release Date:
12/28/13
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla
-----
No virus found in this message.
Checked by AVG - www.avg.com