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Attached are a couple of pics of my tach divider.
It can be set to divide by any number necessary. I can't guarantee it would
work with any tach but it works very well with my cheap off-the-shelf-at-any-autoparts-store,
Hastings tach. I have a few more if anybody wants one.
S. Todd Bartrim
Turbo 13B RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm
"Whatever you vividly imagine, Ardently desire, Sincerely believe in,
Enthusiastically act upon, Must inevitably come to pass".
The EC-2
tach output has 12 pulses per revolution, and won't directly work with
any normal tach. Todd has made a divider to bring the pulse rate down
to normal, and it sounds like it's working well. The TT that you have
expects 1 pulse per rev, so if you don't mind dividing the rpm reading
by 12... :-)