<div name="messageBodySection">Hello all, I am building the dual trigger delay off Harald’s site. With your help I just learned about ferrite beads. I have jumped these and the board has come to life. But, here is the rub. It only works as expected for a very small part of what it can be set at. If I turn the delay up a lot the output stops. If I turn up the length much the output never goes low after sending out a pulse.
<div> I have visually checked all my capacitors and resistors and measured the resistor values. I used tantalum caps and not the boxes he used. Would that make any difference?</div>
<div> I have an oscilloscope and can troubleshoot but am not sure where to start. Should I just follow the input pulse along the schematic and measure how it changes?</div>
<div> Any advice is greatly appreciated. JoeF.</div>
<div><a href="https://www.haraldswerk.de/Gate_and_Trigger/Trigger_Delay/Trigger_Delay.html">https://www.haraldswerk.de/Gate_and_Trigger/Trigger_Delay/Trigger_Delay.html</a><br /></div>