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uk.rec.audio (General Audio and Hi-Fi) (uk.rec.audio) Discussion and exchange of hi-fi audio equipment.

Sorted: Mains hum on budget turntable...



 
 
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  #21 (permalink)  
Old August 30th 06, 04:40 PM posted to uk.rec.audio
Arny Krueger
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Posts: 3,850
Default Sorted: Mains hum on budget turntable...

"lordy" wrote in message

Exchanged it at Richer Sounds , problem gone! Thanks to
one and all (well not quite all).

FWIW new clips at URL below.

Lordy
http://lordy.org.uk/noise.html


The overall SQ seems to be nicely improved.

There are some difference in overall level. Seems like levels were cut by up
to 50% after the fix.

Looks like the record for noise2 got cleaned along the way.



  #22 (permalink)  
Old August 30th 06, 04:52 PM posted to uk.rec.audio
tony sayer
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Posts: 2,042
Default Sorted: Mains hum on budget turntable...

In article , Keith G
writes

"Don Pearce" wrote in message
...
On Wed, 30 Aug 2006 12:21:01 +0100, "Keith G"
wrote:


"Don Pearce" wrote in message
. ..
On Wed, 30 Aug 2006 11:30:34 +0100, "Keith G"
wrote:


Forget all the theories Don, it was a short either in the cart or the
wiring. No amount of 'waveform analysis' was going to beat a bit of
tapping
about with a fingertip here....


Whatever it was , it wasn't a short in anything - totally wrong set of
symptoms.



I disagree, the hum started when there was lateral force on the stylus -
suggesting an internal problem stemming from cantilever movement. If not a
'dead short' then summat near enough to induce hum.

No - that would have resulted in a very different sort of buzz - you
would have heard the rapid connection and disconnection noises, and
they would have modulated the sound. None of that was happening. And
shorts don't induce hum - they make the signal stop.



Right this moment I can tap the wires on my V15/V and it will hum, tap it
again and it stops - on and off like a bathroom light. No buzz, no
'disconnection noises'....


Thats a different sort of umm.. humm.....

--
Tony Sayer


  #23 (permalink)  
Old August 30th 06, 04:56 PM posted to uk.rec.audio
lordy
external usenet poster
 
Posts: 40
Default Sorted: Mains hum on budget turntable...

On 2006-08-30, Arny Krueger wrote:
"lordy" wrote in message

Exchanged it at Richer Sounds , problem gone! Thanks to
one and all (well not quite all).

FWIW new clips at URL below.

Lordy
http://lordy.org.uk/noise.html


The overall SQ seems to be nicely improved.

There are some difference in overall level. Seems like levels were cut by up
to 50% after the fix.

Looks like the record for noise2 got cleaned along the way.


Nothing more than a quick rub on my teeshirt

Lordy



 




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