R7000.4

      COOL YOUR ICOM R7000 RECEIVER WITH ANOTHER HEAT SINK

                        Bob Parnass, AJ9S

     The new ICOM R7000 25-2000  MHz  receiver  is  a  super
     radio,  but the power supply tends to run hot.  The two
     biggest heat generators are  the  pass  transistor  and
     bridge  rectifier  module.  The stock heat sink, a flat
     piece of metal bolted to  the  inside  of  the  cabinet
     rear, is inadequate.  After 30 minutes of use, the back
     panel gets very hot, and the entire cabinet warms.

     I added a small heat sink to the outside of  my  radio,
     using  the  screw that holds the bridge rectifer to the
     stock heat sink.  An  application  of  heat  conductive
     grease between the added sink and the cabinet helps the
     heat transfer process.  Now the  rest  of  the  cabinet
     gets barely warm to the touch.