FIrst up before i post schematics used
Parst i used
Transistors BC547B NpN
BC557B PNP.....both same as in schematic
ZTX558 PNP
ZTX458 NPN
opto coupler.....NEC ps2561
Ic's
Shown HEF4538..........i used MC14538CP
HEf4066...........i used MC74HC4066N
TL072 TL082......i used TL082P
LM311.............i used LM311P
CA3140.............i used CA3140E