| | Realistic POLICE SIREN KIT Runs on 6 to 12 volts. Drives any speaker. Two ... levels, 250 mW and 5 Watts. Easy to build two transistor circuit teaches ... too! Kids love it! Duplicates the upward ... a police siren. Great for alarms, kids toys, bikes, go-karts, etc. Easily built by ... Realistic POLICE SIREN KIT Runs on 6 to 12 volts. Drives any speaker. Two ... levels, 250 mW and 5 Watts. Easy to build two transistor circuit teaches ... too! Kids love it! Duplicates the upward ... a police siren. Great for alarms, kids toys, bikes, go-karts, etc. Easily built by ...
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