Date:         Sun, 1 May 2011 19:33:16 -0400
Reply-To:     Mike S <mikes@FLATSURFACE.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mike S <mikes@FLATSURFACE.COM>
Subject:      Re: Which tachometer? 400-1300Hz or 800-2400Hz
Comments: To: Rocket J Squirrel <camping.elliott@GMAIL.COM>
In-Reply-To:  <1304265598.12718.93.camel@TheJackUbuntuNetbook>
Content-Type: text/plain; charset="iso-8859-1"; format=flowed

At 11:59 AM 5/1/2011, Rocket J Squirrel wrote...

>One is the 333 365, the other is the 333 369. They have very similar
>prices and seemingly the exact same specifications:
>
>For use on 4,5,6,8 cylinder application engines with standard
>coil ignitions, most square wave electronic control ignitions
>with tachometer output terminal, and alternators with "w"
>tachometer terminal.
>
>333 365 is 4,000 RPM (400­1300Hz)*
>333 369 is 4,000 RPM (800­2400Hz)*
>where * = For Alternator use only

Since you'll presumably be connecting to the 
coil, the alternator range won't matter - that's 
for diesels, or maybe cars with coil-per-cylinder 
ignitions, where it might be easier to connect to 
the alternator or an impulse sender.