# Diy gate/trigger button circuit? **URL:** \ **Category:** DIY STUFF\ **Created:** [April 16, 2021, 6:23am UTC](https://lookmumnocomputer.discourse.group/t/diy-gate-trigger-button-circuit/3376 "2021-04-16T06:23:26Z")\ **Posts on this page:** 1\ **Showing post:** 31
**Author:** ![antoine.pasde2](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/antoine.pasde2/32/326_2.png) [@antoine.pasde2](https://lookmumnocomputer.discourse.group/u/antoine.pasde2)\ **Post date:** [January 1, 2023, 4:53pm UTC](https://lookmumnocomputer.discourse.group/t/diy-gate-trigger-button-circuit/3376/31 "2023-01-01T16:53:27Z")
I understand that your design works in your particular circumstances, I guess my warning is more for people wanting to replicate your design in a more generic environment. > [@Jos](#): > > A crow bar circuit combined with a resettable fuse would be better, but much more complicated to implement. The diodes already essentially form the crowbar, so all that’s missing is resettable fuses. See the second part of this post for a schematic. > [@Module requests](https://lookmumnocomputer.discourse.group/t/module-requests/39/232): > > A tug of war drawing might be more appropriate than a dance. slight_smile But if you draw us dancing tango, I’m not dipping (I’ve got a bad back). We keep saying 10.6V for our Vout, but my assumption is that you are going for the full 128 MIDI notes and the voltages are obtained as a PWM. Note 0 is a C at 0V, at 1V/octave, each semitone is 1/12V higher so the highest note 127 which is obtained by PWM as 127/128 x Vout must be 127/12V so Vout = 128/12V = 10.667V The 270ohm resistor compute… --- _[View the full topic](https://lookmumnocomputer.discourse.group/t/diy-gate-trigger-button-circuit/3376)._