Amplifiers & Preamps

This is a sequencer I built up to make sure I don't blow out the preamp when using the big amps. It switches the preamps out of the line, then switches the amplifiers in line, then applys bias to the amps and finally keys the radio. It is built to control 4 different amplifiers and handles keying from the Mic, PC or Footswitch. No lost gasfets since I started using it.

FILE INFORMATION
Filename:	seq.jpg	Width:	360 pixels	Height:	480 pixels
Imagetype:	JPEG	Original width:	360 pixels	Original height:	480 pixels
Original filesize:	19974 bytes	Original filedate:	---	Filedate:	2003.02.15 23:00
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Flash used:	---	Author:	KI0LE	Copyright:	---