[Amps] Acoustic Noise Comparison

[Alek Petkovic]

The Alpha is obviously male. None of that stuff would have made any difference if it wasn't.

73, Alek,
VK6APK

Jerry Kaidor <jerry at tr2.com> wrote:

>Hi,
>
>   I found a spare moment today and couldn't resist.  I popped open the
>hood of the Alpha and cut three squares of the "Dynamat Extreme" that I had
>left over from my car soundproofing project.  I stuck one square on the L/H
>side of the cover, next to ( but not over ) the RF deck.  The second square
>went above the power transformer.  The third square on the R/H side of the
>cover.
>
>   I also cut up a soft rubber mouse pad and put pieces under the amp,
>where the (missing) rear feet were supposed to be, and also under the
>(stiff, plastic ) front feet.
>
>   Buttoned it back up, plugged it in, powered it up.  The amp was MUCH
>QUIETER.  According to the sound meter, about 8 or 9 db quieter.  Just
>as quiet as the 30L-1 in fact.
>
>                              - Jerry Kaidor
>
>
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