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MMD > Archives > July 2002 > 2002.07.21 > 08Prev  Next

Substitute for Open Cup Mercury Switch
By Michael Woolf

I share my old friend Cecil Grace's concerns about the open pot of mercury
in the Welte original.  Faced with the same problem I retained the original
rather rustic-looking switch assembly but bypassed the dangerous contacts
by substituting a sealed-in-glass mercury switch mounted on the arm.  It's
a simple method that keeps a certain integrity to the original.

Michael Woolf
New Zealand

(Message sent Sun 21 Jul 2002, 08:32:26 GMT, from time zone GMT+1200.)

Key Words in Subject:  Cup, Mercury, Open, Substitute, Switch

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