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Miscellaneous circuit diagrams
December 11, 2010
Pressing the pushbutton of the transmitter, a sound and/or light alert is activated in the receiver. The system uses no wiring or radio frequencies: the transmitted signal is conveyed into the mains supply line. It... [more]
December 10, 2010
This is a small, portable set, designed for those aiming at look improvement. The Bio-Stimulator provides muscles' stimulation and invigoration but, mainly, it's an aid in removing cellulitis. [more]
November 16, 2010
This circuit is intended to provide good square waves converting a sine wave picked-up from an existing generator. Its major feature consists in the fact that no power-source is needed: thus it can be simply... [more]
November 8, 2010
Many people experienced sleeping well in natural surroundings, into a tent or a wooden hut. This fact is due not only to the healthy atmosphere but also from our unconscious ability to perceive natural Earth's... [more]
October 16, 2010
This circuit provides a delayed visual indication when a door bell switch is pressed. In addition, a DPDT switch can be moved from within the house which will light a lamp in the door bell... [more]
June 26, 2010
This card is a "season type" interface card to connect your PC to your satellite decoder. Using programs like "Decrypt" you will be able to view a number of encoded transmissions in Videocrypt and D2MAC. [more]
June 23, 2010
This set of two circuits from the basis for a very simple light wave transmitter. A LASER beam is modulated and then aimed at a receiver that demodulates the signal and then presents the information... [more]
June 22, 2010
Two low voltage, low power zeners are used to control electronically the level of an audio signal. [more]
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