[AMPS] Advice On Homebrewing Chassis Please

[Mike Sawyer]

I would like to know if you can still obtain cane metal and if so where? I
have several old home-brew amps and transmitters where the cane metal covers
have become dented and distorted.
Mike(y)
W3SLK

----- Original Message -----
From: Mike McCarthy, W1NR <w1nr@eecorp.com>
To: Terry Gaiser <W6RU@bak.rr.com>; <amps@contesting.com>
Sent: Monday, December 25, 2000 8:46 AM
Subject: RE: [AMPS] Advice On Homebrewing Chassis Please




Equipping a shop to turn out chassis in mass is quite a chore.  Rather than
standard aluminum boxes, which are available from many sources, I would
rather see enclosures that are designed for the cooling requirements of an
amplifier.  These seem to be very difficult, if not impossible, to find at a
reasonable cost.  Something like the SB-220 case would be very flexible.

Most home-brew enclosures I have seen use solid and perforated aluminum
sheet held together with angle stock and screws.  Spot welding aluminum is
probably not a big deal.  Full blown seam welding of aluminum requires an
inert gas arc welder (heli-arc, etc.) and a lot of experience.

GL and 73.
Mike, W1NR

-----Original Message-----
From: owner-amps@contesting.com [mailto:owner-amps@contesting.com]On Behalf
Of Terry Gaiser
Sent: Sunday, December 24, 2000 11:16 PM
To: amps@contesting.com
Subject: [AMPS] Advice On Homebrewing Chassis Please


Hey Group ... Best Of Holiday Wishes To All,

After many years of wanting to put together a metal shop of some sort I am
finally doing so. I now have a foot sheer to go along with my brake. Now I
am trying to decide what the next tools should be ....

One of my goals is too be able to make a chassis of any size and shape I may
need. It looks like on commercially made chassis the corners have the flaps
"spot" welded together. Who can tell me how this is done on aluminum? I
remember the spot welders from metal shop in jr. high school and spot
welding tin together ... is this all that is needed to put aluminum
together? Another possibility is to weld the corners of the chassis together
but I fear the needed equipment to do this would be very expensive?

Any suggestions or help would be appreciated. If I can become equipped and
able to turn out a nice chassis I have considered making them available to
fellow homebrewers.

Thank You,

Terry W6RU


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