I suspect we should make this a little broader in scope, don't you
think?? The concept (design approach) of the AC/DC design of low-cost
electronic equipment carries with it the understanding that this is a
"hot chassis" design that is constructed to operate inside an insulated
environment... plastic cabinet, plastic knobs, and the two-prong
electric cord was designed to plug into the well-ordered AC socket
WITHOUT REGARD TO NEUTRAL OR HOT.
There Is No Chassis Ground to protect.
I suspect one might try to make it somewhat more orderly by putting a
modern 2-blade AC plug on the two-conductor AC cord, but even that will
only give the impression of a modern upgrade to some level of safety.
The Chassis Is Still Hot. What problem are we solving??
73
John K0KHZ
On 8/6/2019 3:28 PM, Glen Zook wrote:
I don't know of any article on doing this. However, it is a very simple thing
to do.
Black wire goes first to the fuse and then to the off / on switch. If no fuse,
add one!
White wire goes to unfused side of the power transformer. If there is a fuse,
it should be rewired in the black lead. If 2-fuses, remove this one.
Green wire goes directly to the chassis.
Of course, this is with transformer powered units.
If AC / DC, then things get "tricky" depending on if one side of the AC line
cord is connected to the chassis.
Glen, K9STH
Website: https://k9sth.net
On Tuesday, August 6, 2019, 04:19:26 PM CDT, Maury Guzick
<[email protected]> wrote:
I have read a couple of different ones in the past, but can't seem to find any on data base searches.
Does anyone have a reference for this?
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