Three vintage computer patch boards: a large and colorful 19.5 x 13.5 patch board from an unknown application; a colorful 13 x 9 board from an unknown application; and a 21 x 14 Donner Problem Board, Model 3430, used with the Donner 3400 analog computer to provide additional programming capability or to demonstrate programming in a classroom. In overall very good to fine condition. Due to the size, weight and/or fragility of this item, special care will be taken when shipping this item. Please contact [email protected] for a quote.
