It my first try i put 3 555 in cascade but i cant have a good range of adjutement on hi speed timing so what is your setup resistor cap and potensiometre.
Ok but i want use 2 scr with 2 cap of 2f end like this i can have 2 difrent voltage on each puls so for the timer what is your sogestion i think this timer is bether then the 555.
I found this timer is perfect for dual puls
http://cgi.ebay.com/Digital-Timer-Digital-Twin-Timer-CE-Approve_W0QQitemZ260586531511QQihZ016QQcategoryZ78206QQcmdZViewItemQQ_trksidZp3286.m7QQ_trkparmsZalgo%3DLVI%26itu%3DUCI%26otn%3D3%26po%3DLVI%26ps%3D63%26clkid%3D8540779251649605511