I was digging in the back of a cupboard in my cellar and came across a number of things from the past. I wonder how many people remember, still have or still use any of these?
Dad's and grandad's sliderules
Grandad's 'multimeter'
Flexicurve and adjustable square (now replaced by CAD)
Dad's AVO model7
Case and U2 battery adaptor he made to get away from the strange square battery for the ohms range.
