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Miscellaneous - list of circuit diagrams

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Magnetic Gun circuit diagram
a miniature magnetic gun

author: Rev. Thomas Scarborough
visits: 38
Quiz Circuit circuit diagram
a 4 input quiz circuit which can easily be modified

author: anc
visits: 36
Magic Wand Conjuring Trick circuit diagram
The simple conjuring trick

author: Rev. Thomas Scarborough
visits: 36
LED Flasher circuit diagram
Based on "Application Notes" for LM317LZ, flashes an LED using the phase-shift principle

author: Andre
visits: 31
LED Torch circuit diagram
Based on the Maxim MAX660, designed to power three 3mm/5mm white LED's from 3V (1.5V min) , intended for replacing incandescent bulbs in small torches.

author: Andre
visits: 28
Room Monitor circuit diagram
This circuit allows audio monitoring of a remote location and so doubles as a room monitor or baby alarm

author: Andy Collinson
visits: 27
Telephone In-Use Indicator circuit diagram
This circuit will illuminate a LED if one of your telephones is in use. It should work in all countries (Including UK) that have a standing line voltage above 48 Volts DC

author: Miroslav Adzic
visits: 23
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