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Component tester circuit diagrams
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December 2, 2010
This is a simple use of the PIC 16F84 about a diode tester. [more]
November 25, 2010
This circuit enables you to test quartz resonators at the range values from 32kHz to 24MHz. Confirmation of good state of quartz resonator is done by diode signalling LED and acoustic signal [more]
October 18, 2010
This is a variation on the astable multivibrator. Circuit was recently developed to test for N-mosfets(the power kind e.g irf830) [more]
October 12, 2010
This simple circuit has helped me out on many occasions. It is able to check transistors, in the circuit, down to 40 ohms across the collector-base or base-emitter junctions. It can also check the output... [more]
October 5, 2010
This is a simple XTal tester circuit. T1 and XTal have formed an oscillator. C1 and C2 are voltage divider for oscillator. if the XTal is safe, the oscillator will work well and its output... [more]
September 30, 2010
Many times we have found itself in the necessity to use a Zener diode and cannot to know the voltage of operation. Many times we cannot read the characteristics or the type that is written... [more]
September 30, 2010
This simple circuit tests speakers, microphones, transformers and voltage. It's basically a very low frequency oscillator that produces extremely short 'fruity' pulses. The type of sound produced is very easy to hear and to determine... [more]
circuit from:http://www.extremecircuits.net/2010/01/components-voltage-tester-circuit.html
September 27, 2010
You have to admit that these tiny electronic lamps are handy, and they last almost forever. Around 40 years after Nick Holanyak developed the first LED, they have become just about indispensable. Any self-respecting electronics... [more]
circuit from:http://www.extremecircuits.net/2010/04/led-tester-circuit-diagram.html
September 27, 2010
This simple LED tester consists of a current source with a potentiometer that can be used to adjust the current. The current source is implemented using a type TL081 opamp. The output current of the... [more]
circuit from:http://www.extremecircuits.net/2010/05/very-simple-led-tester.html
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