breadboard instruments

In Leo's lab, his "breadboard instruments" were used to quickly test new pickups and their position. In this case, a twin MFD single coil arrangement mounted on a wooden board, with pickup selector switch, series/parallel switch, volume and tone pots on a separate plate.

This example seems to have been with him a long time, considering the Fender era bridge, Music Man era neck and G&L era MFD pickups. These "breadboard instruments" were workhorses, perhaps with neck swaps over the years. We suppose this one started out with a late '60s Fender neck.