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Old Jun 11, 2009, 07:21 PM
jrb
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Mag/Hall input to Opto tach?

Wondering if a typical optical hobby tach (i.e. GlowBee: http://www3.towerhobbies.com/cgi-bin...&P=SM&I=LXPX81 ) could be easily modified to accept a magnetic input from the like of a Hall Effect sensor?

TIA,


Jim
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Old Jun 12, 2009, 08:55 AM
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Does a typical opto tach use a photo resistor or transistor?
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Old Jun 12, 2009, 10:29 AM
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Iím going to guess the later; can we condition the signal of a mag/hall effect sensor to look the same?
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Old Jun 12, 2009, 10:39 AM
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I would think that you could just drive an LED from your mag/hall effect sensor, and put that in front of the sensor on the tach. That way you don't have to modify the tach at all.

Dan
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Old Jun 12, 2009, 05:16 PM
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Thanks for that idea Dan!
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Old Jun 14, 2009, 06:18 AM
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Quote:
Originally Posted by Dan Baldwin
I would think that you could just drive an LED from your mag/hall effect sensor, and put that in front of the sensor on the tach. That way you don't have to modify the tach at all.

Dan

Loved your idea ! A non invasive treatment...

Hell-e-Guy
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Old Jun 15, 2009, 01:22 PM
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Let me know if it works for you.

Dan
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