Most older turn signal systems have a "flasher" unit which "turns on and
off" the current to the signal light bulbs, the timing of the on cycle is
controlled by a bi-metal strip that heats up with the current flow (the
current to the signal bulbs) and warps - opening a set of contacts...when it
cools it closes again.....(that's why when you hook up a trailer w/ lights &
signals the lights all blink faster) the LED replacements will draw much
less current, and therefore not heat the bi-metal strip enough to open the
contacts, or at best the "on" cycle will be really long.....Hope that's not
a lot more info than you wanted!
Thanks,
Sheldon Schmidt
SS Machine Works, Inc.
sheldon@ssmachine.com
Web Site: www.ssmachine.com
'56 3100 NAPCO TF
'55 3100 TF
-----Original Message-----
From: Mask1966@aol.com [mailto:Mask1966@aol.com]
Sent: Sunday, February 22, 2004 3:38 PM
To: 60schevy@topica.com; oletrucks@autox.team.net;
old-chevy-truck@yahoogroups.com
Subject: [old-chevy-truck] LED bulbs
Has anyone installed the 1157 taillight bulbs with replacement LED bulbs? I
am considering using them (either 12 or 19 LEDs) in my '65. I would like to
have people behind me able to see me. I've heard that the LEDs may effect
how
the turn signals work, but don't know how. Any experts out there? Thanks.
Mike Klepp
'48 3100 5 window
'65 C-10 stepside
Wichita Falls, TX
[Non-text portions of this message have been removed]
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