Leaderboard

over the past couple of weeks I have seen the posts on making a sys80 ram adapter which got me thinking.......so now I have a working board I thought I would try my plan out! managed to find the first mpu3 ram board I made for testing, this will be my base board, the 2 chips it replaces are side by side, sys 80 is end to end ram chips! so off came the pins and turned pins put in place of the left side which will plug into one of the ram sockets, then after a bit of scrambling around found the SMD ram chips and soldered one on. then to make this universal for different pin spacing I put a small length of cable soldered to round pin into the place where this would plug into the other ram chip on MPU3, so it looks like this... next plugged into the ram sockets on the sys 80 board switched on and it works perfectly!! Brilliant I now have a known working and good sys 80 test ram adapter!!

For the purists amongst us: Farnell: 1 x 9717480 (PME271M622K — EVOX RIFA — CAPACITOR, CLASS X2 0.22UF) 2 x 9717552 (PME271Y447M — EVOX RIFA — CAPACITOR, CLASS Y2 0.0047UF) 1 x 9717439 (PME271M533M — EVOX RIFA — CAPACITOR, CLASS X2 0.033UF) RS: 1 x 210-522 (PME271M capacitor,0.22uF 275V 20.3mm) 2 x 210-594 (PME271Y wire ended cap,0.0047uF 250Vac) 1 x 210-471 (PME271M capacitor,0.033uF 275Vac)