Isolated DMX splitter
Introduction When you need to connect DMX projectors you can use wireless or cable. In my case, I have a fixed setup so I use a wire solution. But the…
Marantz PM350 : How to repair a vintage amp
Introduction A guy bring to me a MARANTZ PM350 amplifier. He says that to have a little sound the volume button has to be set to the maximum. And, it…
Mic to line amplifier
Introduction So I needed to connect a standard microphone to a conventional speaker amplifier. The signal comming out the mic is really low. It can be lower than 20mV. You…
Getting DMX data in a PIC
Introduction When I need to change the functions of a fixture I use the DMX bus to drive them. This article presents you the software code I use (in C…