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Re: RQSG Cylindircal style question



Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

I use about the same total gap width on my static gap for 12/60 operation (0.25"). I personally like large diameter copper tubing and to use the least amount of segments necessary to keep the gap cool. Here's a pic of a static gap I like using which is very easy to build and works great. I've tried "many segment" static gaps and I have had far better performance with large tubing. The main task is to keep the gap cool. How air travels through the electrodes is important.

http://www.classictesla.com/photos/ba45/s2748.jpg
This gap uses 6 copper tube electrodes which are 1.25" diameter with a total gap of 0.25". Can be purchased ready to go at most hardware stores (no cutting required).

If you ever want to experiment with different static gaps of this configuration, note that the "green" housing is pvc epoxied to the fan (it's fixed in place). The pipes themselves are epoxied to a slightly smaller "white" pvc. The "white" pvc simply slides "into" the green pvc. It can be easily removed for cleaning or for installing other variations of electrodes (or for experimenting). I can install a completely new static gap in this fan in about 2 minutes.

Take care,
Bart

Tesla list wrote:

Original poster: otmaskin5@xxxxxxx
I forgot to include spacing info. With each gap at 0.03" & using either 7 or 8 segments, your total gap spacing would be 0.21" or 0.24". 0.21" should work well, but you have the option of experimenting by opening the 8th segment for a little more punch.
0.24" would be around the max you would want to use with a 12,000 volt NST.


-----Original Message-----
From: tesla@xxxxxxxxxx
To: tesla@xxxxxxxxxx
Sent: Sun, 18 Feb 2007 9:09 PM
Subject: Re: RQSG Cylindircal style question

Original poster: otmaskin5@xxxxxxx
Vinnie, I think 7 would do it, 8 might be a little better & would also give you more adjustability. Dennis Hopkinton MA

-----Original Message-----
From: tesla@xxxxxxxxxx
To: tesla@xxxxxxxxxx
Sent: Sat, 17 Feb 2007 7:11 PM
Subject: RQSG Cylindircal style question

Original poster: "Vinnie" <teslatech@xxxxxxxxxxx>

Hello All

In the process of upgrading my coil and I plan on upgrading or building a new cylindrical style RQSG. I've forgotten where I've placed the power specs. Does anyone know how many segments and gap spacing I would need for a 12,000v @90ma input with 8 series 942c20p15k? I'm upping from my previous input of 12,000v @60ma.
Perhaps it's not advisable without a larger cap value?

Thanks for your time

Vinnie


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