replica RCA Antennas

Posted: 9/14/2007 8:56:11 PM
teslatheremin

From: Toledo, Ohio United States of America

Joined: 2/22/2006

Alan...
Awesome tube bending! How are you going tho secure them to your T-Max?

Good Luck!

teslatheremin
Posted: 9/15/2007 12:01:07 AM
Alan_in_CA

From: Fresno, California USA

Joined: 3/26/2006

Here are the connectors:

Swagelok bulkhead union, brass, 3/8 inch:
http://www.swagelok.com/search/product_detail.aspx?part=B-600-61

I am familiar with this product from work, and had the boss order me a package (four). The invoice hasn't come in yet, so I don't know the price. Note that on each end there is a nut. Inside each nut is a pair of ferrules, front (cone shaped) and back (a 2-level ring). Slip the nut onto the end of the tubing, followed by the back and then the front ferrule. Put the tubing into the fitting as far as it will go, then tighten the nut as far as it will go, not just to where you feel resistance. Back the nut off, and the ferrules are connected so firmly to the tubint (a little back from the end) that the only way to remove them is with a hacksaw. The only washers I found at the hardware store that would fit these unions are so big I think I will skip them on the outside, since the case will be red oak and pretty hard. On the inside I will put a washer and lock washer, and maybe a spade lug underneath the lock washer will make a good electrical connection.

They also sell straight copper tubing that I think might very well work; it's the same size as the aluminum tubing I used. In October I will pass by a Swagelok distributor, and I might take a look and/or buy a length.

Swagelok copper tubing (note 3/8 inch, 0.035 in wall, 10 ft straight):
http://www.swagelok.com/downloads/webcatalogs/EN/MS-01-160-SCS.PDF

Dealers:
http://www.swagelok.com/distributors/locate_dist.aspx

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