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Third party software and hardware support forums. / Re: Need help with c41 board and pwm spindle control with VFD
« on: August 04, 2013, 03:48:44 AM »
If the circuit which you are connecting the TTL output to applies too much loading and the TTL voltage is falling then perhaps consider including a simple transistor driver.
This page may be of interest http://www.bristolwatch.com/ele/transistor_drivers.htm
Tweakie.
This page may be of interest http://www.bristolwatch.com/ele/transistor_drivers.htm
Tweakie.