My first rig was a DX40 which I bought from Tony McClosky, WA3CAO. He had
built a plate modulator for it and installed an extra octal socket in the
back to connect it. A few times I got too close to that and got bit by the
B plus. Not fun.
----- Original Message -----
From: "John Sherrer" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, November 28, 2013 3:11 PM
Subject: Re: Re-station ground
> Another shocking story.
> This was when I was in grade school, I do not remember how old, I got a =
> hold of a 12v light bulb, and I wanted to light it. So I took a a lamp =
> with no bulb in it, went into my closet with my two little sisters, and =
> put the side of the bayonet mount against the side of the lamp socket, =
> took a screw driver and put it into the center of the socket and put it =
> against the middle of the bayonet plug, and for an instant the bulb =
> flashed, then sparks, and no lights in the house. Some my mom found an =
> extension cord and my back as I ran!
> John E Sherrer
> KI4ARK=CD=CE=CE
>
> John Sherrer
> [log in to unmask]
>
>
>
> On Nov 27, 2013, at 7:33 PM, Butch Bussen <[log in to unmask]> wrote:
>
>> Since we're on shocking stories... I was a little kid and I could see=20=
>
>> light in those days. I had one of those night lights that was a
>> sheep=20=
>
>> and had a place to screw in one of those little threaded bulbs. I =
> guess=20
>> I plugged it in the wall and there wasn't a bulb in the thing, so I=20
>> thought I'd stick a finger nail file in that little hole. I can
>> still=20=
>
>> remember this bright flash before every light in the house went out. =
> We=20
>> had fuses in those days, and the whole house was probably on two =
> fuses.
>>=20
>> 73
>> Butch
>> WA0VJR
>> Node 3148
>> Wallace, ks.
>>=20
>>=20
>> On=20
>> Wed, 27 Nov 2013, Steve Dresser wrote:
>>=20
>>> I'm surprised the cord didn't weld itself together or set something =
> on fire.
>>> Amazing what we try when we don't know better.
>>>=20
>>> Steve
>>>=20
>>> ----- Original Message -----
>>> From: "Jim Gammon" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Wednesday, November 27, 2013 01:50
>>> Subject: Re: Re-station ground
>>>=20
>>>=20
>>>> Hmmh, I couldn't say about that but it brought back a memory of
>>>> when I was in middle school. I can talk about this because it's
>>>> been over 40 years ago. We had a class room with metal counters,
>>>> maybe they all had them. I had found an electrical cord with a
>>>> plug on one end and bare wires on the other, a dangerous thing in
>>>> any case but especially in the hands of a kid in jr high. Well,
>>>> I plugged the cord in and touched the wires to the counter top
>>>> and man how the sparks did fly!
>>>> But, actually to be more scientific about it, to see if one wire
>>>> completed the circuit and would probably mean the countertop was
>>>> grounded, I would have had to try each wire separately on the
>>>> countertop which I may have done, but after all these years, I
>>>> don't remember. What I finally did was to tie the ends together
>>>> then give the plug to another student and have them plug it in.
>>>> You could hear the circuit vibrate in the wall for maybe seemed
>>>> like 20 seconds or so, longer than I would have expected, before
>>>> it quit for the rest of the school year. Jim WA6EKS
>>>> ----- Original Message -----
>>>> From: Colin McDonald <[log in to unmask]
>>>> To: [log in to unmask]
>>>> Date sent: Tue, 26 Nov 2013 23:23:26 -0700
>>>> Subject: Re: Re-station ground
>>>>=20
>>>> is a stainless steel countertop generally grounded to the house
>>>> electrical
>>>> system?
>>>>=20
>>>> 73
>>>> Colin, V A6BKX
>>>> --------------------------------------------------
>>>> From: "Steve Dresser" <[log in to unmask]
>>>> Sent: Tuesday, November 26, 2013 2:59 PM
>>>> To: <[log in to unmask]
>>>> Subject: Re: Re-station ground
>>>>=20
>>>> Colin,
>>>>=20
>>>> I'd caution against using the grounding of the electrical
>>>> outlets as a
>>>> station ground. I lived in a house where the electrical ground
>>>> of the
>>>> outlets had 150 volts which I measured between it and a
>>>> stainless steel
>>>> counter in the kitchen. It turned out that the house's
>>>> electrical system
>>>> wasn't grounded to anything in the known universe.
>>>>=20
>>>> Steve
>>>>=20
>>>> ----- Original Message -----
>>>> From: "Colin McDonald" <[log in to unmask]
>>>> To: <[log in to unmask]
>>>> Sent: Tuesday, November 26, 2013 16:31
>>>> Subject: Re: Re-station ground
>>>>=20
>>>>=20
>>>> you already have a ground between the tuner and the radio via
>>>> the coax
>>>> shield...
>>>> You already have full chassis ground through the ground prong on
>>>> the AC
>>>> power.
>>>> However, to avoid RF hot spots on the chassis of your equipment,
>>>> it is
>>>> advisable to use another earth ground of some kind for your
>>>> equipment...either via a ground rod, or to the main electrical
>>>> ground of
>>>> the
>>>> house such as the city side of the water meter on the cold water
>>>> pipe, or
>>>> connected to the ground rod used by the electrical of the house
>>>> if there
>>>> is
>>>> one.
>>>> Also, having a separate ground rod just for the station is good
>>>> because
>>>> that
>>>> can also be used for both RF and electrical ground and will help
>>>> in the
>>>> case
>>>> of a nearby lightening strike etc.
>>>> You need to use a ground bus, and have a wire from each piece of
>>>> equipment
>>>> connected to that common bus...do not daisy chain the grounds
>>>> together.
>>>> In
>>>> other words, your grounding has to be paralel, not series.
>>>> If it's electrical ground, the wire length doesn't matter at
>>>> all...but if
>>>> you are going after an RF ground, the length of the ground wire
>>>> may, if
>>>> you
>>>> are using a non-resonant antenna, or latter line or long wire
>>>> and a
>>>> tuner,
>>>> effect the tuning of the antenna.
>>>>=20
>>>> Often an additional ground for the station equipment is not
>>>> necesary as
>>>> the
>>>> AC ground takes care of it, but sometimes you may need it if you
>>>> find you
>>>> are having issues with RFI in your audio, or excessive noise on
>>>> receive
>>>> or
>>>> if you are causing RFI to other electronics in the house or with
>>>> your
>>>> neighbors.
>>>>=20
>>>> 73
>>>> Colin, V A6BKX
>>>> --------------------------------------------------
>>>> From: "Mike Ryan" <[log in to unmask]
>>>> Sent: Tuesday, November 26, 2013 1:10 PM
>>>> To: <[log in to unmask]
>>>> Subject: Re-station ground
>>>>=20
>>>> So if I have a ground wire running from my ATU's ground stud to
>>>> the back
>>>> of
>>>> the rig's ground stud, considering my rig has a built in power
>>>> supply
>>>> and
>>>> a
>>>> 3 prong plug, this will be fine?
>>>>=20
>>>> Mike
>>>>=20
>>>=20
>>>=20
>
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