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Overtone crystal oscillator – Circuit Schematic
Overtone crystal oscillator
This oscillator is designed for overtone crystals in the 20-100 MHz range operating in the third and fifth mode....
Low-frequency oscillator 10-150khz – Circuit Schematic
Low-frequency oscillator 10-150khz
CI in series with the crystal may be used to adjust the oscillator output frequency· Value may range between 20 pF and 0.01 µ¥, or may be a trimmer cap...
Crystal oscillator provides low noise – Circuit Schematic
Crystal oscillator provides low noise
The oscillator delivers an output of high spectral purity without any substantial sacrifice of the usual stability of a crystal oscillator. The crystal in addit...
IC-compatible crystal oscillator – Circuit Schematic
IC-compatible crystal oscillator
Resistors Rl and R2 temperature-stabilize the NAND gates; they also ensure that the gates are in a linear region for starting. Capacitor CI is a dc block; it mu...
Pierce crystal oscillator – Circuit Schematic
Pierce crystal oscillator
The JFET Pierce oscillator is stable and simple. It can be the clock of a microprocessor, a digital timepiece or a calculator. With a probe at the output, it ca...
1Mhz fet crystal oscillator – Circuit Schematic
1Mhz fet crystal oscillator
This stable oscillator circuit exhibits less than 1 Hz frequency change over a VDD range of 3-9 volts. ...
Crystal-controlled signal source – Circuit Schematic
Crystal-controlled signal source
This general purpose signal source serves very well in signal-tracing applications. The output level is variable to more than 1 Vrms into a 50 O load. Almost an...
Crystal oscillator II – Circuit Schematic
Crystal oscillator II
This circuit uses an LT1011 comparator biased in its linear mode and a crystal to establish its resonant frequency. ...
Crystal-controlled oscillator for ssb – Circuit Schematic
Crystal-controlled oscillator for ssb
This oscillator may contain several switched crystals to provide channelized operation....
10 Mhz crystal oscillator – Circuit Schematic
10 Mhz crystal oscillator
This xtal oscillator is a FET equivalent of a vacuum tube tuned to plate-tuned grid xtal oscillator. Feedback is via the drain to gate capacitance. ...
Varactor-tuned 10 mhz ceramic resonator oscillator – Circuit Schematic
Varactor-tuned 10 mhz ceramic resonator oscillator
The FET input amplifier has fixed bias with source feedback. This provides a very high input impedance with very low capacitance. The FET amplifier drives an em...
Triangle-to-sine converters – Circuit Schematic
Triangle-to-sine converters
Conversion of triangle wave shapes to sinusoids is usually accomplished by diode-resistor shaping networks, which accurately reconstruct the sine wave segment b...
Square wave-to-triangle converter – Circuit Schematic
Square wave-to-triangle converter
This fixed frequency triangular waveform generator driven by a TTL square wave generates typically 16-V p-p triangles at frequencies up to several MHz. It uses ...
Z80 clock circuit – Circuit Schematic
Z80 clock circuit
The circuit will operate reliably from below 1 MHz to above 400 MHz. With Vcc = 5 V the output of the second inverter essentially attains a full swing from 0 V ...
60Hz pulse generator – Circuit Schematic
60Hz pulse generator
The circuit provides a clean, stable square wave and it will operate on anywhere from 6 to 15 volts. The IC and color-burst crystal are the kind used in TV rece...
3 square waves generator – Circuit Schematic
3 square waves generator
The circuit provides three square wave outputs with 120° of phase difference between each other. Reference clock frequency is twice that of the required freq...
Square wave generator III – Circuit Schematic
Square wave generator III
The generator described here is intended for multiburst signal square waveform generation and can be used as a device for characterizing the response of TV moni...
Bridge circuit – Circuit Schematic
Bridge circuit
The transistor is connected as an audio oscillator, using an audio transformer in the collector. The secondary goes to a linear pot....
Square wave oscillator as wire tracer – Circuit Schematic
Square wave oscillator as wire tracer
The tracer works by placing a square-wave signal ?n the line to be traced, The square wave is full of harmonics. ? small radio placed close to a wire carrying t...
Simple UHF oscillator – Circuit Schematic
Simple UHF oscillator
This oscillator is typical for 350 to 500 operation. The microstrip inductor is a PC board trace. The output power is 55 to 100 mW into 50, with the frequency s...