Hi. Yes i contacted him after my first build failed. Arranged with him to send me a part-kit , less the switches & pots etc.. so i could build a second one for less money.
He sent me a part-kit & it cost me extra at my post sorting office (Might as well have bought a complete new kit)
Anyway, i built the second kit extra careful like & meticulously checked every solder join with a magnifying glass. I am 100% confident that every join is good, no shorts etc..
I followed the instructions step by step & double checked every step, all polarities , pots in the right places, switches the right way round .
I even sent photo's of my finished board to helensson & got confirmation from him that it was all the right way around.
It's actually not that complicated & with care you wouldn't make errors...Which i didn't.
This kit though , all it does is this...
...no triggering from the pietzo (Doesn't work) & with the volume turned up enough & the oscillators switched on ,nothing until you turn the 'res' knob fully up.
Then you can hear a constant drone from the oscillators along with some messy noise.
The selector switches seem to work & select their functions & i can tune the oscillators too.
The volume knob is sensitive & erratic.
No other functions work. Damn shame because i think the oscillators would sound awesome if the kit was ok....But it's not !
i can either switch it on with 'res' up fully for a drone or switch it off...That's it.
If you have bought the board & not the parts, i wouldn't waste my time & money if i were you.