Tesla Technology Multi-Wave Oscillator circuit

The clock circuit is constructed using a stable oscillator that consists of two inverters integrated into IC1 and a watch crystal that oscillates at 32.768 kHz. This frequency is divided by 16384 through the internal flip-flop chain of IC1, resulting...

Simple triangle-square wave oscillator

By making Rt variable, it is possible to alter the operating frequency over a 100 to 1 range. The versatile triangle/square wave oscillator has a possible frequency range of 0 Hz to 100 kHz. The described circuit features a variable resistor,...

Electronic pests killing lamp circuit diagram 4

The electronic pest-killing lamp circuit comprises an oscillator, control circuit, high voltage generator, LED indicator circuit, and power supply circuit. The schematic diagram illustrates these components. The oscillator circuit includes a time-base integrated circuit (IC), resistors R5 to R7, diodes...

Local Oscillator For Double Balanced Mixers Circuit

This circuit includes an amplifier designed to deliver +10 dBm to an SBL series (Mini-Circuits) or a similar type of doubly-balanced mixer assembly. The circuit parameters are specified for 80 to 90 MHz crystals, although the values of the oscillator...

Oscillator operates from one cell

The circuit is powered by a single 1.35 V mercury cell and provides a 1 V square-wave output. The crystal acts as a tuned circuit between transistors Q1 and Q2, which are connected in a common-emitter configuration. Positive feedback is...

Micro Power AM Broadcast Transmitter

This circuit utilizes a 74HC14 hex Schmitt trigger inverter as a square wave oscillator to drive a small signal transistor configured in a class C amplifier setup. The frequency of the oscillator can be either fixed using a crystal or...

Oscillator without a crystal

Is it possible to build an oscillator (VCO or not) without using a crystal? I built a Pixie II with a borrowed crystal, which I have since returned, and now I am inquiring about the feasibility of constructing an oscillator...

Code practice oscillator II

Oscillator, operates with 2 to 12 volts DC (optimal performance is achieved at 9 to 12 volts for maximum volume and clear keying). Additionally, R1 can be substituted with a 500K potentiometer, allowing the circuit to sweep across the entire...

150 To 30000Khz Oscillator

A capacitor in series with the crystal can be utilized to adjust the output frequency of the oscillator. The value can range between 20 pF and 0.01 µF, or it can be a trimmer capacitor. The values are approximate and...