ElectroSuite.com - Roger Beep Oscillator Schematic.
ElectroSuite.com- Video Switcher Maxim MAX454 Multiplexer. Watch several cameras on one monitor with this simple device. The heart of the video switcher is a Maxim MAX454. That integrated circuit contains a four-way video multiplexer and an amplifier that operates as a low-impedance line driver. The resulting video output is high quality with very low phase distortion.
ElectroSuite.com - AM Radio RF Amplifier Typical is used in an AM radio receiver.
ElectroSuite.com – BC549C Condenser Microphone Pre Amplifier. This is a very simple preamplifier circuit for condenser microphone. This mic preamplifier also can be used for dynamic microphone.
ElectroSuite.com – 1N4148 5 VDC to 10 VDC Regulated Supply. The circuit starts via the current supplied by the 100k turning on the third transistor via its base.
ElectroSuite.com – 3904 3906 Siren Circuit. The circuit produces a wailing siren sound when the switch is turned on.
ElectroSuite.com – Solar Mailbox Project. The Solar Cell is charging the 3 AA NiMH cell trough the Sziklai pair composed by the T5 (2N2907) and T4 (1N1711).
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 – Sound Generator Modifications. The sound generator circuit board sits in the tender of the locomotive.
ElectroSuite.com – A nice Solar Power Amplifier Speaker by pstretz, this amplifier is meant to be used outdoors in the sun so there was no need for a battery. Also even if it charged a 9VDC battery it would only last about 15-20 minutes inside anyway.
Solar Power Amplifier Speaker by pstretz – instructables.com