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Miscellaneous - list of circuit diagrams

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Wart Zapper circuit diagram
A new and improved version of Thomas Scarborough's wart zapper

author: Thomas Scarborough
visits: 7258
Metal Detector circuit diagram
A single chip metal detecor with a range of a few inches

author: Andy Collinson
visits: 2645
Temperature Monitor circuit diagram
Simple Temperature Monitor

author: Andy Collinson
visits: 467
Hot Water Level Indicator circuit diagram
A simple device to indicate various levels of hot water in a tank.

author: Andy Collinson
visits: 230
Neon Desklamp circuit diagram
This circuit will power a 6 inch 4 Watt fluorescent tube off a 12 volt supply, consuming 300 mA

author: Rev. Thomas Scarborough
visits: 219
Conjuring Trick circuit diagram
Absolutely incredible trick

author: Rev. Thomas Scarborough
visits: 186
Static Electricity Negative Ion Detector circuit diagram
This circuit relies upon the extra high input impedance of a FET, and also demonstrates the gate terminals sensitivity to changes in voltage

author: Andy Collinson
visits: 169
Audio Perimeter Monitor circuit diagram
Using a single cable such as speaker wire or doorbell cable, this circuit can be remotely positioned

author:
visits: 154
LED Torch circuit diagram
The LED Torch is based on a 7555 timer running in astable mode

author: Rev. Thomas Scarborough
visits: 52
Decimal to BCD Convertor circuit diagram
This circuit will provide an output in Binary Coded Decimal from any of the input switches. The input switches may be expanded to 16 switches, providing a Hexadecimal to BCD conversion

author: Ron J
visits: 46
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