Larry -
Perhaps I misunderstood your statement, but the AC-3 bolts right in to the MS-4 speaker, just like
the AC-4.
That said, it IS a much better idea to put some sort of protective cover over it, since fingers have
a way of finding themselves in contact with HV.
The stuff known as 'cane metal' expanded aluminum from the hardware store that can be cut with heavy
scissors works great, and as it 'could' be inside the MS-4 appearance isn't mandatory.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
Larry Sack wrote:
As I was poking around my newly rebuilt AC-3 power supply, I had a thought to create something to
keep fingers, wayward conductive tools, dropped objects, etc. from entering the unholy high
voltage regions of the AC-3. While the bottom is securely fastened and not subject to the above,
the above board area concerns me. The AC-4, if mounted in the MS-4 speaker, is nicely protected
however nothing exists for my lowly AC-3.
I was thinking of heading to the nearest home improvement store to obtain a sheet metal decorative
screen or even plain sheet metal (heat's an issue). Two quick bends, a few holes for screws and
some black (Drake blue?) spray paint would make a nice U-shaped cover. I haven't thought how to
close up the ends although the transformer end doesn't bother me as much as the high
voltage/bright sparking end.
Has anyone else tried this? Thoughts? How do you address the safety of the
beast?
Larry, N8QNM
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