[Heathkit] SB-230

[Ross Stenberg]

I've used and handled an SB-230 for many years without any affects on
myself. I've used and handled an SB-230 for many years without any affects
on myself.I've used and handled an SB-230 for many years without any affects
on myself.I've used and handled an SB-230 for many years without any affects
on myself.I've used and handled an SB-230 for many years without any affects
on myself.I've used and handled an SB-230 for many years without any affects
on myself.I've used and handled an SB-230 for many years without any affects
on myself.I've used and handled an SB-230 for many years without any affects
on myself.I've used and handled an SB-230 for many years without any affects
on myself.

	73 Ross K9COX

-----Original Message-----
From: heathkit-bounces at mailman.qth.net
[mailto:heathkit-bounces at mailman.qth.net] On Behalf Of BSugarberg
Sent: Wednesday, October 25, 2006 9:46 PM
To: heathkit at mailman.qth.net
Subject: Re: [Heathkit] SB-230

Hello,

I am curious about what SB-230 users think about the other SB-230 concerns:

 From Chuck Penson's "Heathkit: A Guide to Amateur Radio Products book, 2nd
Edition, page 232:

SB-230

"DANGER: The SB-230 contains a block of Beryllium Oxide.  Dust and fumes
from this material are DEADLY POISON!  The Beryllium Oxide block is used as
part of the heat sink for the 8873, and is located in a rear panel cut-out
between the 8873 and the large finned heat sink on the rear panel.
DO NOT drill, chip, crush, saw, or file the Beryllium block.  It should be
handled only with protective gloves and eye wear.  Also note that the gooey
heat sink compound is dangerous.  Wash your hands immediately after contact
after contact with the Beryllium block or the heat sink compound.  The
Beryllium block and the heat sink compound should be handled with the utmost
care, and treated like the hazardous materials they really are."

"Another minor hazard (but one to watch out for) is the temperature of the
large heat sink on the rear panel.  In normal operation the temperature of
the heat sink may rise as high as 750 F - as hot as the tip of a soldering
iron.  Keep the amplifier clear of combustible materials and be sure to
provide adequate ventilation."

"No doubt the toxicity of the heat sink (and its potential liability) played
a part in the decision to discontinue the 230 as well."

73, Bruce WA8TNC