Circuit Project Electronic

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 [...]

Specifications
Frequency range 0.95 Hz to 105 KHz in five decade ranges.
Waveforms
Sine, Triangular and Square.
Output amplitude
Adjustable from 10 mV PP. to 10 V PP
Output impedance 50 ohms.
Sine wave Amplitude Flatness +/- 1 dB
Sine wave THD
* Less than or equal to 0.8% from 10 Hz to 10 KHz
* Less than or equal to 2.5% from 1 Hz [...]

In this page, I introduce the sawtooth wave oscillator which used the operational amplifier (TL082).
The composition of this circuit is the same as the triangular wave oscillator basically and is using two operational amplifiers. At the circuit diagram above, IC(1/2) is the Schmitt circuit and IC(2/2) is the integration circuit.
The difference with the triangular wave [...]