General electronics circuit diagrams

NE555 Monostable

Use of the ubiquitous 555 timer in monostable mode.

Voltage Comparator

This circuit will provide an indication whenever the input voltage differs from two defined limits, V1 and V2. The limits are adjustable and the circuit made to trigger from the adjustable "window".

Decimal to BCD Convetor

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.