Ramp Generator by 2N4891
This be Ramp Wave Generator Circuit by use UJT , 2N4891 numbers are important equipment. By Q2 take Voltage of C1 and give Output be sawtooth waves . The R3 will control occurrence waves sawtooth rate by signal picture has will the character is waves , the alms is Voltage quietly increase until sawtooth picture until be high class Voltage topmost that about 5.4V by use power supply Voltage 9V. I hopes this circuit may is born the advantage and friends , please yes.
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Categories: Audio diagram, Oscillator generator Tags: 2N4891, ramp generator, Signal generator, waveform generator
Tone Generator by 2N4891
This be Basic Tone Generator by UJT Transistor 2N4891 numbers. By it s can give with small-sized loudspeaker s have a voice electric loud bell moderately. The value of C1 be valuable a little for enhance the speed in the package and disgorge to load. In each round (Cycle) that get be sound frequency at shine depart a loudspeaker. By can fine sound frequency get with R2 – 100K the value Resistance low tall frequency. But if the value is Resistance the tall low voice frequency. This circuit has can to develop next again. Request enjoy something sound electric bell this circuit please sir, be lucky.
Categories: Audio diagram Tags: 2N4891, audio effect, Tone Generator
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