Digital Logic Circuit Designing Simulating Software

LogicCircuit – is free, open source educational software for designing and simulating digital logic circuits.

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Automatic Gain Control PreAmplifier Circuit Diagram

The preamp circuit uses an easily obtained 741 op amp set for an internal gain about 200.

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4017 LED Knight Rider Circuit Diagram

4017 LED Knight Rider Running Light Circuit Diagram

In this  4017 Knight Rider circuit, the 555 is wired as an oscillator. It can be adjusted to give the desired speed for the display. The output of the 555 is directly connected to the input of a Johnson Counter (CD 4017).

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Momentary push button soft latching toggle on off switch circuit

Momentary push button soft latching toggle on off switch circuit

This is a momentary push button switch circuit for toggling electronic devices ON and OFF. When you push once this circuit set to ON and push again circuit set to OFF.

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Inductor Design Software

Inductor Design Software

You can easily design inductors using this application. We can enter micro Henry, Ohms, Amperes, Core shape, Winding type, Frequency, Voltage, temperature and more settings.

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large vintage vacuum tube, big valve tube by electronicecircuits.com electronic circuits

large vintage vacuum tube, big valve tube by electronicecircuits.com electronic circuits

large vintage vacuum tube ( big valve tube ) by electronicecircuits.com. I get this from my Father ( S. N. Palitha Dayarathna. (4S7ND)) Anyone Know about this valve tube ?

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50Hz 60Hz Frequency Generator Circuit Using Crystal Oscillator

50Hz 60Hz Frequency Generator Circuit Using Crystal Oscillator

 

 

You can generate 50Hz or 60Hz using this frequency generator. This oscillator can be used as the front end of circuits that require precision pulses.
A crystal is used in the circuit to generate clock pulses. The circuit uses two counter ICs CD4060 and 7490 to divide the basic frequency to generate 50Hz or 60Hz pulses.

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