From: "Jim Shorney" 
Subject: Re: [drakelist] CM 12 Solution???


On Thu, 29 Apr 2004 20:51:16 EDT, OTAKEBI{at}aol.com wrote:

>Could Marty find out the resistance of the bulb he is looking for and use the 
>bulb base to wire in a resistor and then place the unit back in the rig?
>Seems that this would solve the problem of a hard to find or obsolete bulb.


It would seem that there is more to it than just having a resistor
there.  The temperature characteristics of the lamp filament would
cause it to act as a sort of a surge limiter as well as a fuse. 
Similar to the way Bose used a Chevy dome light lamp as a tweeter
protector in thier 301 bookshelf speakers.  Call it a primitive version
of the PTC "thermal fuses" used in modern electronics.  It should be a
simple matter to look at the specs on the lamp and find a more "modern"
equivalent.  What say the gurus?

-- 
Jim Shorney      -->.<--Put complaints in this box
jshorney (at) inebraska.com
nu0c (at) amsat.org
Ham Radio NU0C
Lincoln, NE, USA
EN10ps
http://incolor.inetnebr.com/jshorney/

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