[TheForge] Re: We'll leave the light on for ya...was rod ovens

Kenneth Mayer [email protected]
Mon Mar 4 20:45:00 2002


>From: "Stephen McGehee" <[email protected]>
>Date: Mon, 4 Mar 2002 12:00:44 -0500
>
>Some light bulb basics here folks:
[snip]
>
>To extrapolate on the above theory, you can buy 240Volt bulbs with a
>standard base.  A 240 V, 100 Watt bulb consumes 50 Watts at half
>voltage(120) so if you put one of these in the impossible to reach
>fixture above your grandmas attic stairs, it will last 10 years...  They
>also make "rough service" bulbs that have extra bracing of the filament
>; these are great for drop lights that get knocked around...that's why
>they are called drop lights...
>The above is probably more than anyone wanted to know about light bulbs
>but now you know that you have additional options for peace, prosperity
>and longevity...


You can wire two 120 volt bulbs in series to make them last almost forever.
Another "failsafe" trick is to have a second bulb in the cabinet, controlled
by a photosensor.  When the first bulb fails, the second lights immediately.
Just check them occasionally.  Move the back-up bulb into the primary socket
and install the new bulb in the back-up socket.

btw don't keep welding electrodes in a cold refrigerator or freezer.  When
removed, condensation will instantly form on them.  Also only low hydrogen
electrodes (E-7018, etc) need to be kept warm and dry.  Most others actually
require some moisture for the flux to work well.

There's a fire station in California (in Sacramento, iirc) where a light
bulb has been burning continuously for 100 years.  It made the news again a
few months ago.  The bulb was made by Thomas Edison.

Ken
:-)