I got an Elenco 300 in 1 kit for Christmas. The kit eats batteries. The problem is the kit has no on-off switch going to the battery pack underneath the breadboard and connectors. I need ideas for building a "disconnectable" battery pack for the kit that sits outside the plastic breadboard and connectors. Six AA, 1.5 volt batteries power the unit. The voltages available in the kit are 1.5 volt, 3.0 volts, 4.5 volts, 6.0 volts, 7.5 volts and 9.0 volts.
Thank you in advance for your help.
Thank you in advance for your help.