On mine, it was underneath, pretty close to the power cord, under the power 
supply, it looked like a double nut with a star washer between the 2 nuts, 
it was very close to the little rubber or plastic foot that keeps it from 
sitting right on the desk. I never used it but I remember it was there, very 
close to that let. You had to really be looking for it or you'd think it was 
just another bolt.
----- Original Message ----- 
From: "tom behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, February 09, 2011 7:03 AM
Subject: Re: Gary's Post Made Me Think Again


> John:
>
>    Can you tell me exactly where to look for it, and what to look for?
>
> 73 from Tom Behler:  KB8TYJ
>
> ----- Original Message ----- 
> From: "John Miller" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, February 08, 2011 11:30 PM
> Subject: Re: Gary's Post Made Me Think Again
>
>
> On the RS-35, the grounding stud is underneath.
> ----- Original Message ----- 
> From: "tom behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, February 08, 2011 10:08 PM
> Subject: Re: Gary's Post Made Me Think Again
>
>
>>  Mike.
>>
>> I just checked my Astron RS35 supply, and there is no grounding bolt as
>> you
>> suggest.  On the very left-hand back portion of the supply, there are the
>> DC
>> power connections at the top, followed by a fuse, and finally, there's 
>> the
>> AC power cord connection.
>>
>> When things shut down as I key up, it still sounds to me like the power
>> supply is on--in other words, the hum doesn't go away, as I think it
>> would,
>> if it had shut down completely.  This is why I'm thinking the floating
>> ground might have something to do with the rig runner.
>>
>> But again, I can't be sure.
>>
>> So, keep on speculating, and before too long, I'll have dozens of things
>> to
>> try.
>>
>> 73 from Tom Behler:  KB8TYJ
>>
>>
>> ----- Original Message ----- 
>> From: "Mike Duke, K5XU" <[log in to unmask]>
>> Tco: "Tom Behler" <[log in to unmask]>
>> Sent: Tuesday, February 08, 2011 8:56 PM
>> Subject: Gary's Post Made Me Think Again
>>
>>
>> Some, but not all, of the PS35 Power supplies, have a grounding bolt
>> on the back panel near where the AC line cord comes out of the
>> cabinet.
>>
>> If yours has that grounding bolt, run a wire from it over to your
>> station ground, or attach a counterpoise to it.
>>
>> One more thing about a counterpoise, especially one which is indoors.
>>
>> You don't have to use copper strap or brade for the counterpoise
>> wires.
>>
>> Zip cord type speaker wire from Wall-Mart will work just fine in that
>> application. You can use both conductors, or just one, or even pull it
>> apart and have two completely separate counterpoises.
>>
>> It's that mad scientist thing again.
>>
>>
>>
>>
>>
>> Mike Duke, K5XU
>> American Council of Blind Radio Amateurs