On 3/17/2015 4:29 PM, wrote:
A fairly common practice among "gear heads" back in the 50's and 60's
was to connect a spark plug right near the tip of the tailpipe. Somehow
they would use a part often called a "vibrator", which was used in old
vacuum tube car radios to convert DC to AC. That was fed to a capacitor
and a spare ignition coil, which then provided a spark in the spark plug
at the tail pipe outlet. The cars back then, had no catalytic
converters and allowed raw heated gas to exit the exhaust system. That
spark plug ignited those raw gasses and would blow a fairly large flame
out of the tailpipe. It looked "COOL". It was pretty harmless, unless
someone got too close and set their pants or dress on fire!


It's been a lot of years, but I recall a vibrator
created pulsating DC, which could be put through a
transformer. Not AC.

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Christopher A. Young
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