[Amps] Rubber Mats ( was Direct rectification of AC mains to drive the amp, )

[Steve Bookout]

Along a similar line...

I fought poor performing Beverage antennas for abt 2 years, before I found the problem.  The black plastic boxes I used to house the transformers at the antenna feed were conductive.  I put the stainless hardware directly thru the plastic, after all it WAS plastic!  
Found out that these boxes were Delux Lista brand parts bins for their Line of cabinets.  They had carbon in the mix because they were intended for storing static sensitive components.

Check EVERYTHING!

73 de Steve, NR4M



On Oct 7, 2013, at 12:00, Ron Youvan <ka4inm at gmail.com> wrote:

> On 10/07/2013 11:06 AM, donroden at hiwaay.net wrote:
> 
> /*snip*/
>> I insulted it off the concrete floor with 1 foot wide rubber mats.
> 
>> It neasured 30 ohms to AC power common.
> 
> 
> >  Turns out that there was enough carbon black in the rubber for it to be conductive.
> /*snip*/
> 
>  A friend asked me to test the vinyl jacket on common RG-8/U to see how good an insulator it is, because I have a Hi-Potter (to 45 kV) at work.  I couldn't test it, it is way too leaky to test, obviously for the same reason.
> -- 
>  Ron  KA4INM - Youvan's corollary:
>                Every action results in unwanted side effects.
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