The 'simplicity' of the circuit can be a bit deceiving. The optical pick up is straight forward enough. However it does use a small-embedded 8-bit microprocessor and a binary image (HEX) file to program it.
Analog tachometers are easy enough to make from 555 timer IC-S. The print gauges at www.sherline.com are cool however .. George Larribeau Dallas Texas ----- Original Message ----- From: "Jim Cathey" <[EMAIL PROTECTED]> To: "Mercedes Discussion List" <mercedes@okiebenz.com> Sent: Wednesday, November 21, 2007 12:31 AM Subject: Re: [MBZ] super simple circuit for a Tachometer >> With all the talk in the past about tachs for diesels this might be of >> interest to someone. >> http://www.davehylands.com/Electronics/Tachometer/ >> Here's a super simple circuit for a Tachometer. > > The circuit that's actually in the can isn't much more > complex than that, and can be used to drive standard > gasser-type tachometers. (One that can be recalibrated > for the number of pulses per rev.) > > -- Jim > > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
