Well, Dave and Ed, I don't have that high level background.
I'm just a retired USAF and FAA radio repairman that will
hit my 67 year license anniversary at the end of next month.
My eyesight is sort of going away after a stroke in my left eye
back in 2013 and depth perception about nil now. Lost house,
tower, antennas, vehicles in tornado back in 1999 and no place
in new place for much of any shop work.
I reckon I could gather parts and build a Common Mode choke
if a parts list for Mouser or similar were available.
My first rig was the Walter Ashe Novice Station and I later built
a 6AG7 to parallel 807s from the handbook. Even converted the
ARC-5 transmitter to the W2EWL phasing SSB rig.
I just think this might be a project that even beginners could take
on and get him or her started in building something.
73 - Mac, K2GKK/5
Since 30 Nov 1953
Oklahoma City, OK
USAF (Retired) 61-81
FAA (Retired) 94-10
________________________________
From: David Eckhardt <davearea51a@gmail.com>
Sent: Friday, October 2, 2020 17:04
To: D C _Mac_ Macdonald <k2gkk@hotmail.com>
Cc: Hare, Ed W1RFI <w1rfi@arrl.org>; rfi <rfi@contesting.com>
Subject: Re: [RFI] NEW REFRIGERATOR/FREEZER from KITCHENAID
Mac, I'd be a little embarrassed to write an article on something so simple,
but that's QST and ARRL these days.
However, I certainly will take your suggestion under consideration. I've been
licensed for 60+ years and have a hard time with the lack of technical
knowledge of the average newbie. Degree is in physics (from the Ordivician
times from Michigan State.....) and always worked in high tech, mostly as an
EMC/RFI engineer with some RF design thrown in for good measure. But, it's up
to us old fossils who cut our teeth with vacuum tubes like 813's and 6146's to
pass along some of the knowledge. I was reading QST when Eimac came out with
the 3-500 bottle of which I have two in my AL-82 amp. I loved the 3CX1200A amp
from Ameritron, but that amp is gone in a major forest fire here in N. Colorado
in 2012. Again, I will seriously consider your suggestion.
Ed Hare: Having written that, do you believe an over designed AC power
application of a CM choke might be good for QST? Of course, it would also
cover the operation of the CM choke and applications even at RF to reject CM
noise on feedlines (I use open wire on my HF wires).
Dave - WØLEV
On Fri, Oct 2, 2020 at 9:45 PM D C _Mac_ Macdonald
<k2gkk@hotmail.com<mailto:k2gkk@hotmail.com>> wrote:
If it is that good, Dave, why not send it and
how to build it to ARRL to include in QST for
the benefit of ALL of us?
73 - Mac, K2GKK/5
Since 30 Nov 1953
Oklahoma City, OK
USAF (Retired) 61-81
FAA (Retired) 94-10
________________________________
From: RFI
<rfi-bounces+k2gkk=hotmail.com@contesting.com<mailto:hotmail.com@contesting.com>>
on behalf of David Eckhardt
<davearea51a@gmail.com<mailto:davearea51a@gmail.com>>
Sent: Friday, October 2, 2020 16:31
To: Hare, Ed W1RFI <w1rfi@arrl.org<mailto:w1rfi@arrl.org>>
Cc: rfi <rfi@contesting.com<mailto:rfi@contesting.com>>
Subject: Re: [RFI] NEW REFRIGERATOR/FREEZER from KITCHENAID
Ed, I'm well aware of the FCC exemptions for home appliances. That's why I
took it on myself to solve the problem with the well over-designed CM
choke. Just wish we could post pictures on this site.
Dave - WØLEV
On Fri, Oct 2, 2020 at 8:48 PM Hare, Ed W1RFI
<w1rfi@arrl.org<mailto:w1rfi@arrl.org>> wrote:
> When it comes to appliances, there may be nothing to enforce. Appliances
> are categorically exempt from any specific emissions limits under Part 15.
> A refrigerator with removed filtering components may be perfectly legal,
> subject only to the manufacturer's requirement to use "good engineering
> practice," whatever that means and a requirement for the operator of the
> device to use it in a way that does not cause harmful interference to
> licensed radio services.
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