ElectroSuite.com – 3904 3906 Siren Circuit. The circuit produces a wailing siren sound when the switch is turned on.
ElectroSuite.com – PIC16F84A Alarm Clock. This clock counts seconds, minutes, hours and day of the week. Time is displayed on 4 seven segment LED displays, and is adjustable with three buttons at start time (up, down, enter).
ElectroSuite.com – This Garnet Swinger Guitar Amplifier is the amplifier The Peasant uses for making music.
ElectroSuite.com – This Sound Detector Amplifier output of a regular electret condensor microphone quite nicely by adjust sensitivity of R1.
ElectroSuite.com – Better Bass Bachmann Sound System. The noise generator used in the Bachmann Sound System is somewhat band limited, especially at the low end resulting in a tinny chuff sound.
ElectroSuite.com – Sound Generator Modifications. The sound generator circuit board sits in the tender of the locomotive.
ElectroSuite.com – Surround Sound Decoder – ElectroSuite.com.
ElectroSuite.com – This Bells Ring Generator using MC14106 or 40106 Hex Schmitt Inverter IC generates a dual-tone bells ringing similar to most door-bell units.
ElectroSuite.com – MPSW45A Electronic Chime. This circuit simulates a chime similar to the sound many cars make when the keys are left in the ignition.
ElectroSuite.com – Emergency Siren Simulator using 2N4401 and 2N4403.