The circuit has been designed to create a spectrum analyzer that will provide an analysis of a sound to determine at various frequencies, the volume of sounds that make up the overall sound spectrum.

The eighteen IN-13 Nixie tubes are fed from a 125V DC supply. The solid brass framework is made from 37 individually machined parts, and the base is solid mahogany. The eighteen IN-13 Nixie tubes are ...

Only LED displays that are made to display text. <BR><BR>An all-hardware audio spectrum analyzer is a pretty simple beast... particularly if you don't need it fancy, calibrated, useful for real ...

[Learnelectronics] purchased some near-field EMI probes for his tiny spectrum analyzer for about $5 on sale. Could they be any good at that price? Watch the video below and find out. The probes ...