PT2399 Echo Application Circuit

This is a less polished version of Handmade Electronic Music, featuring nearly identical content and available for free. Notably, refer to Chapters 18 and 20. The layout consists of conductive metal strips beneath the perforations of the breadboard. Typically, there...

Mains variable Delay circuit

The circuit shown will switch on and off a resistive or inductive load up to 800VA with the possibility to adjust both the on and off period. Switching takes place during the zero crossing of the sine wave. The switch...

Interpolating Scanner Circuit

This design is for an interpolating scanner, a circuit featuring multiple signal inputs, a control voltage input, and a signal output. The output selectively transitions between inputs, smoothly fading from one to the next as the control voltage increases. A...

Delay switching for power amplifiers

This delay can be used in power amplifiers to prevent the fuses from failing when the amplifier is turned on. The circuit is very simple with a relay that is turned on when C2 and C3 are charged. If the...

PT2399 | Digital Echo Audio-Circuits

The PT2399 digital echo circuit schematic is an electronic design that utilizes the PT2399 integrated circuit (IC) for audio applications. This digital echo processor, based on CMOS technology, incorporates both analog-to-digital conversion (ADC) and digital-to-analog conversion (DAC) processes for audio...

Delay Timer

Once the mains power supply is interrupted, the relay will only activate after a delay of 150 to 210 seconds, depending on the tolerance of the RC circuit. The described circuit operates as a time delay relay system, which is crucial...

simple delay speaker circuit schematic

This circuit was designed for an audio amplifier project to control the speaker output relay. The primary function of this circuit is to manage the relay that activates the speaker output in the audio amplifier. The circuit introduces a delay...

Delayed Power supply schematic

I had designed up an oscillator with a Power Output circuit. Problem was when power was applied to the entire circuit, the output of the Oscillator gave a Momentary Spike into the output circuit. Thus Driving it full on for...

Spring Reverb

A listener positioned at a distance from a sound source perceives sound as a combination of direct sound and indirect sound that has been reflected off the boundaries of the listening area. These reflections are known as reverberation. Reverb can...