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R7000.4
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1991-03-10
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897b
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21 lines
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.