Re: Remote Power Supply Connection

"Ian Thompson-Bell" <ruffrecords@[EMAIL PROTECTED]
> wrote in message 
news:g16ked$1r7$1@[EMAIL PROTECTED]
> Trevor Wilson wrote:
>> "Ian Thompson-Bell" <ruffrecords@[EMAIL PROTECTED]
> wrote in message 
>> news:g13o17$10ph$1@[EMAIL PROTECTED]
>>> Trevor Wilson wrote:
>>>> "Ian Thompson-Bell" <ruffrecords@[EMAIL PROTECTED]
> wrote in message 
>>>> news:g0up1a$1ap1$1@[EMAIL PROTECTED]
>>>>> Trevor Wilson wrote:
>>>>>> "Ian Thompson-Bell" <ruffrecords@[EMAIL PROTECTED]
> wrote in message 
>>>>>> news:g0rmo0$27co$1@[EMAIL PROTECTED]
>>>>>>> I agree when the rectifiers are close to the transformer supplying

>>>>>>> them but not when they are separated from it my a couple of metres

>>>>>>> of cable.
>>>>>> **And again, it is not difficult, nor expensive to deal with such 
>>>>>> issues. A handful of capacitors will effectively deal with any 
>>>>>> problems.
>>>>>>
>>>>>>
>>>>> Definitely not. The point is that the caps normally used to suppress

>>>>> reverse spikes in semiconductor diodes do just that. The have no 
>>>>> effect on the forward current spikes which are significant.
>>>> **No.
>>>>
>>> Denial is not much of an argument.
>>
>> **How about: Not necessarily? Better?
>>
>
> Hardly.
>
>>>>  With remote ac
>>>>> supplies these current spikes must pass through the cable and they 
>>>>> will cause serioes radiation. Any attempt to stop them happening
will 
>>>>> simply stop the rectifiers from rectifying. That is why is is 
>>>>> essential to have the rectifiers close to the transformer.
>>>> **No.
>>>>
>>>
>>> Denial is not much of an argument.
>>
>> **OK. It is not necessary to have rectifiers close to the transformer.
I 
>> set up a test last night, with 2 Metres of cable, connected to a 
>> transformer, thence to a rectifier, thence to an amplifier. An AM radio

>> place VERY CLOSE to the cable picked up some radiation. Covering the 
>> cable with an earthed sheild completely eliminated the noise.
>>
>
> And what current were you drawing from the rectified output?

**4 Amps @[EMAIL PROTECTED]
 60 Volts.


-- 
Trevor Wilson
www.rageaudio.com.au