[Collins] 75A3 front panel and power supply

[Jim Brannigan]

Cal,
I had an A3 and never gave a thot to heat buildup.  The stock cabinet had 
plenty of "head room" and vent holes.
But that was a long time ago when heat buildup was not even thought about. 
Now I have fans on everything.

Jim

> All:
> Just wanted to know your thoughts on these questions:
>
> On the first, I recently swapped for a 75A3. I'm
> repainting the cabinet as well as rebuilding the
> speaker. The front panel is in nice shape *except*
> that some prior owner drilled out four holes to
> accommodate front panel handles (now long since gone
> but the holes remain). I think I can put front panel
> mounting screws in there place to put it in the
> cabinet but I can also JB Weld them and send the front
> panel out for rescreen/repaint. The A3 has been
> slightly modified.
>
>
> The next is the power supply. Transformer gets warm,
> REALLY WARM/BORDERLINE hot! The filter cap also seems
> warm and there is a trace of hum on the audio. I'm
> going to do a cap replacement but I was also
> considering bucking the voltage down and installing a
> quiet muffin fan to cool down the entire rx
> (modification bolt in and easy to remove). Your
> thoughts?
>
>
> Thanks and looking forward to your feedback.
>
> Cal, N6KYR/8
>
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