Mag/Hall input to Opto tach?

[jrb]

Wondering if a typical optical hobby tach (i.e. GlowBee: http://www3.towerhobbies.com/cgi-bin/wti0001p?&P=SM&I=LXPX81 ) could be easily modified to accept a magnetic input from the like of a Hall Effect sensor?

TIA,


Jim

[jrb]

Does a typical opto tach use a photo resistor or transistor?

[jrb]

I’m going to guess the later; can we condition the signal of a mag/hall effect sensor to look the same?

[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

[jrb]

Thanks for that idea Dan!

[Hell-e-Guy]

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... :D

Hell-e-Guy

[Dan Baldwin]

Let me know if it works for you.

Dan