The step finder SHI is used in electro-mechanical devices: for opening doors and gates, for dispensing materials during their packaging, for dispensing fuels and lubricants, etc. This can be used for cool steampunk DIY or some project. Have 25×8 pins working pins(physically 27×8). The item “Vintage USSR Step Switch electromagnetic relay ShI-25/8 Uniselector DIY” is […]