Hi, John! I dug up this old comment on fan noise on the ten ten reflector:
From: Michael O. Hyder <N4NT@bigfoot.com>
>> To: bens@valint.net; tentec@contesting.com
>> Subject: Re: [TenTec] Hercules II and 444 Amps
To: <tentec@contesting.com>
>> Date: Friday,July 10,1998 5:03 AM
>>
>> Hi Bob--
>>
>> My 444 did not have a clacking relay (unless you are talking about
the
>> stepping relay used as the bandswitch). QSK made no more noise than
the
>> Omni-C alone.
>>
>> The 444 did have a fan which was not very loud when the amplifier was
>> sitting idle, but would sound rather like a 747 landing when the heat
>> sink got hot. This fan noise was reduced by placing the 444 on a
piece
>> of carpet so the desk didn't act as a sounding board. After that it
>> sounded like a 737 landing.
>>
>> I know nothing of the Hercules II, but it seems about the only thing
it
>> has in common with the 444 is that they are both solid state and they
>> share the name 'Hercules.' Knowing what I do about the 444, I wonder
>> why TenTec didn't call the new one the 'Zeus' or something else to
keep
>> folks from associating the two amplifiers.
>>
>> Regards, Mike N4NT@bigfoot.com
Don’t know if that helps, but it may help…..
Mike, N8TTR
> On Nov 20, 2018, at 8:30 PM, John Farler <k4avx1@windstream.net> wrote:
>
> My Hercules II fan seems kinda loud. I have no way of
> knowing whether there's a problem, but the ads, of
> course say it's a quiet fan. This might be something
> I can fix, if it is going out.
>
> Can anyone give me an idea about this situation?
> Thanks,
> John, K4AVX
> k4avx1@windstream.net
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