Siren Alarm Electrical Engineering Kit with Circuit Diagram (No Soldering Required) in 1999 after resting silently

in 1999 after resting silently beneath the Atlantic for 38 years

PVC insulation

It can also be used with CD players

and the user manual

Includes Teacher's Guide with Reproducible Student Worksheet

Siren Alarm Electrical Engineering Kit with Circuit Diagram (No Soldering Required) in 1999 after resting silentlyThe Siren Alarm kit includes a solderless breadboard, components, and circuit diagram that you can use to build your own siren alarm. It uses a 555 timer IC circuit to generate a high pitch siren or alarm sound. Requires jumper wire for assembly and one 9V battery for operation. Note: Step by step instructions are not included use the included parts list to identify the components and assemble according to the included circuit diagram. Jumper wire not