Here some project for work and for fun

AMPLIFIER

The first job is an integrated amplifier build with my ex colleague.

This amplifier used vacuum tubes for amplify and semiconductors for supply.

Frontal

Rear

Inside

Inside bottom

Front details

Rear details

Construction details

The display used for the volume and the inputs was with nixie tubes and volume control with optical encoder.

For each channel was used a ECC83, ECC82, and four 6L6GC for active component.

WELding

This project is a welding for a plastic pipes and plastic profile for windows.

It was an high voltage amplifier plugged with a couple of power piezo actuator.

The input of amplifier was an wavewform generator (sinusoidal, triangle, square) based on AD9833.

Overview

Mechanical device

Signal generator circuit

High voltage piezo amplifier

Piezo actuator with temperature control

In this moment I have designed with KiCad and programmed with Arduino a audio preamplifier, a signal waveform based on DDS and a Power supply for my fun.

For comment or contact dario.salani@gmail.com