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Re: Make-before-break switch

I've never seen a "knife blade switch" that was MBB (Make-Before-Brake).
I have seen at least one ganged set of MBB switches that were "rotary" in
construction all slaved to the same shaft.

This switch used to be part of an old GR Capacitance/Inductance Bridge and
were used to switch between scales or levels of sensitivity for the
nulling meter.

+=================================+

On Mon, 2 Apr 2001, Herbert H Gottlieb wrote:

On Mon, 02 Apr 2001 13:12:59 -0400 Eugene Mosca <emosca@PTD.NET> writes:
I am looking for a good photo of a single-pole double-throw
make-before-break switch. (Make before break means that when the
switch is thrown an electrical connection is made between the pole and
the new
contact before the connection with the old contact is broken.) Does
anyone
know where I can find such a switch, or a photo of one?

I assume that your single-pole double-throw switch consists of
three contacts in a line with the knife blade attached to the
center contact. If so, just move one of the outer contacts so it
is separated from the other outer contact by a distance that is
slightly less than the width of the knife blade.

Herb


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