Wailing Siren Kit (#1751)

Wailing Siren Kit
Wailing Siren KitWailing Siren KitWailing Siren Kit
Price: $8.99

This is the Wailing Siren Kit. This kit will produce a Wailing Siren sound that can be used on tricycles, bicycles, and battery-powered toy cars. It can also be used in models and other games where a Wailing Siren sound is desired. The circuit is based on an LM555 Timer and a CMOS Quad Schmitt Trigger.

This circuit can be built in one night. A small speaker is included in this kit. The PCB is double-sided, plated thru-hole, 1.50" long x 2.50" wide made of .062" FR-4 epoxy glass. It has green Solder Mask (LPI) on both sides with white Silk Screen on the Top side and four mounting holes.

This kit is now available as a "Built & Tested" for a small fee for those that do not want to build it themselves. Below is a detailed introduction to component identification and kit assembly.

General Instructions

This kit does not include the tools you will need to assemble the circuit. You will need tools such as a soldering iron, solder, wire cutters, etc. The kit includes the following:

Type Part Description Quantity
IC LM555N, Precision Timer, DIP, 8-pin 1 ea
IC CD4093, Quad 2-Input NAND Schmitt Trigger, DIP, 14-pin 1 ea
Transistor 2N4401, NPN, Signal, TO-92 2 ea
Transistor 2N4403, PNP, Signal, TO-92 1 ea
Diode 1N4148, Silicon, Signal, DO-35 2 ea
Diode 1N4007, Amp, 1000V, DO-41 2 ea
PCB Wailing Siren PCB, NightFire 1 ea
Schematics Wailing Siren Circuit 1 ea
Instructions Basic Soldering & Components ID 1 ea
Resistor 120 Ohms, 1/4 Watt, Carbon Film 1 ea
Resistor 470 Ohms, 1/4 Watt, Carbon Film 1 ea
Resistor 3.3K Ohms, 1/4 Watt, Carbon Film 1 ea
Resistor 10K Ohms, 1/4 Watt, Carbon Film 1 ea
Resistor 33K Ohms, 1/4 Watt, Carbon Film 1 ea
Resistor 82K Ohms, 1/4 Watt, Carbon Film 2 ea
Resistor 330K Ohms, 1/4 Watt, Carbon Film 1 ea
Resistor 3.3M Ohms, 1/4 Watt, Carbon Film 1 ea
Capacitor .01uF, Ceramic Disc 2 ea
Capacitor .1uF, Ceramic Disc 2 ea
Capacitor 10uF, Aluminum, Radial 1 ea
Capacitor 100uF, 1 Aluminum, Radial 3 ea
Potentiometer 100K, Single-Turn, PCB Mount 1 ea
Battery Clip 9V, Snap-type, 2 wires 1 ea
Speaker 2", Round, Miniature 1 ea