[ICOM] IC706MK2g gets hot on xmit and audio distorts

[Mort Arditti]

Howard,

The heat issue related to the 706 is real.
My 706 is in the trunk.
To keep it cool, I mounted a 3" 12 VDC fan an inch or so from the heat sink.
The rear ACC connector, pin 8 has DC output when the radio is on.
Even though the maximum output current from pin 8 is 1 A, I played  it safe
and used this voltage through a large resistor to turn ON a MOSFET. The
MOSFET is the switch that turns the fan ON directly from the raw 12 VDC.
It worked very well to keep the radio cool.
Note that there is a great variety of cooling fans and the air flow. I 
selected
a fan with high air flow. These fans are nosier, but having it in the trunk 
it  did
not make any difference.

I hope this helps,

73,

Mort,  KB6BSN
----- Original Message ----- 
From: "Howard W3CQH" <hsgorden at comcast.net>
To: <icom at mailman.qth.net>
Sent: Tuesday, July 24, 2007 11:02 AM
Subject: [ICOM] IC706MK2g gets hot on xmit and audio distorts


> Somewhere along the line, I remember seeing something about the 706MK2g 
> getting HOT while transmitting and also the transmit audio going 
> distorted...
> Anybody have any information on this??
> Short of sending the unit to ICOM???
>
> 73's
>
> ----
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