This little tester can be used with 4164 and 41256 DRAM ... Just pop the suspect chip into the ZIF socket, hit the reset switch, and wait for the LED – green is good, and red means it’s ...

Heres what you can do if your light switch isnt working ... inexpensive (2 lead wire type) voltage tester and needle-nose pliers to install a dimmer. Wiring problems and mistakes are all too ...