Yamaha DTXpress/DTXplorer/DTXtreme

I was wrong again. Your circuit works as is with everything. I just
have to flip the output and ground for the 1/4" mono jack. It still
misses hits every couple though. I'm going to go ahead and solder one
up now with brand new parts and see how things work out. Thanks for
all the help. I'm a pretty big newbie when it comes to all of this.

--- In DTXpress@yahoogroups.com, "Keith" <keith@...> wrote:
>
> It is almost impossible to diagnose what is happening without seeing
> some signals.  However, I am suspicious that you have got it working
> for the wrong reasons.  While I don't know what is in the game box, I
> do know what the KP65 signals are like and if it doesn't work with R1
> in the circuit then there is something wrong.  I think you are
> possibly coupling the piezo signal directly into the game box input
> through the transistor/diode, rather than using the transistor as a
> switch.  
> 
> Keith.
>