analog computer by prohri

Hi all. here ım making my old school analog computer dont ask to me "why you decided to make a old style computer modern computers are better than is" yes its true but this project just for fun , understandinganalog computing and increasing my electronic skills. when ım finishing it (ı hope ı can) it will have 4-integrator 4-amplifier 2-multiplier(ı cant use so many multipliers because chips ı will use AD633 and they are pretty expensive) 4- summer circuits eith 3 input per 1 and the buffers you are see there thars all for now