Valley Audio



Valley Audio 401 Mike processors.  Long out of production but they still get the job done. 


 Mountain Dew.  It’s always Mountain Dew. 


Most equipment has a weak spot and this is the 401’s.  The voltage regulator heat sinks are held on with nylon hardware.  Nylon hardware becomes brittle when subjected to heat over time.   The heat sink comes loose and the regulators overheat.  If we are lucky the failure stops there.  If not the op-amps are next.