Another way of looking at this is through the lens of history and
inflation. In 1969 a set of Drake twins (R-4B, T-4XB, MS-4, AC-4) cost
$1149.85 (in the 1969 Lafayette Radio catalog). That translates to
$8136.60 in 2020. I daresay that the K4's features and performance are
just a tad bit be
Scott,
I noticed the same thing this last weekend, having not been on 10 much
since getting the amp. But I found the noise to be quite variable. It
doesn't always occur. When it does, it appears suddenly, out of the
blue while operating.
Sometimes I could make it go away by turning off th
FWIW - My test using the Alpha 89, was with only the built-in fan on,
not the add-on one in back (which I've never really had to use).
73,
Chris, W2PA
On 6/4/2018 4:43 AM, Stefan von Baltz, DL1IAO wrote:
Hello Bob,
Thanks for the measurements! Was this with the Alpha’s auxiliary fan on or off
In an attempt to quantify this, I installed OSHA's free NIOSH app, which
measures noise, onto my iPhone 7 and tried it out. It's not a
measurement instrument, mind you, so the absolute numbers are highly
questionable. But the relative numbers are interesting. I held the
phone at eye level be
Mine arrived today. The order was time stamped as 8/25/2017 8:08:00
AM. But I'm told they are shipping by order number, not date or serial
number. Mine was 110447.
73,
Chris, W2PA
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