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Tools and measuring - list of circuit diagrams

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Coil Coupled Operation Metal Detector circuit diagram
A Coil Coupled Operation Metal Detector made from readily obtainable components and using an ordinary medium receiver as a detector

author: Rev. Thomas Scaraborough
visits: 657
IR Remote Control Tester circuit diagram
This circuit is the way of measuring the relative intensities of different Infra red light sources.

author:
visits: 570
Sqaure Wave Oscillator circuit diagram
Simple Square Wave Oscillator

author:
visits: 526
Connection Tester circuit diagram
A low resistance ( 0.25 - 4 ohm) continuity tester for checking soldered joints and connections

author: Andy Collinson
visits: 457
page: 1 2