Long time readers may recall that about once a year I beg other list members to see if they have the manual for the Pro-Log M822 8080 analyzer - that quest continues. But I am now the proud owner of a Pro-Log M824 Z80 analyzer that I snatched up for $15 off ebay. Of course there was no manual. But now - theoretically - I can add blinken-lights to both my Sol-20 and my NorthStar Horizon and single-step to my heart's delight. So...... are there any list members with the manual / schematic for EITHER the M822 OR the M824 ???? Bob Stek Saver of Lost Sols