However Denny Had seems to be doing well now,
please see www.caryaudio.com/about/team.html
73 de Osten SM5DQC sm5dqc@areteadsl.se
----- Original Message -----
From: "jeremy-ca" <km1h@jeremy.mv.com>
To: "Tom Rauch" <w8ji@contesting.com>; "dave arruzza" <w1ctn@yahoo.com>;
<amps@contesting.com>
Sent: Monday, August 13, 2007 8:57 PM
Subject: Re: [Amps] LK 500 ZA heat
>> Pulling air out is a bad idea. Fans do a terrible job of
>> sucking air. Think of them as pressure amplifiers.
>>
>> If you pressurize the inlet of a fan or blower, it greatly
>> increases outlet pressure. If you draw on the outlet it
>> hardly changes airflow. The inlet fan largely sets the
>> volume of air. The same is true for restrictions. If you
>> restrict an inlet, there is a huge air volume change. If you
>
> Tell that to the millions of car owners with electric fans that pull the air
> thru the restrictive radiator. Tests have long proven that trying to push
> the air thru the radiator is a bad idea.
>
> Placing a small fan in exhaust mode has also saved many sweep tube rigs from
> premature tube failure. Ask anyone who used Drake C Line in contests for
> example.
>
> Amp Supply simply used poor choices for the fans as well as very little
> egress for the hot air. Ive seen several of those amps with portions of the
> tops and sides cut out and replaced by perforated aluminum. Mine has a stock
> cover but the paint is discolored.
>
> Amp Supply also switched to the proper switch design about mid way thru the
> life of that ZC product. I was a consultant to Denny and received the
> LK-500ZC and a LK-781 as part payment. Unfortunately the company went under
> shortly after due to Dennys personal problems.
>
> Carl
> KM1H
>
>
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