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  #11  
Old 23rd March 2011, 04:53 PM
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Dave Cawley Dave Cawley is offline
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Wink Re: Some really great news

No
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  #12  
Old 23rd March 2011, 05:02 PM
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Default Re: Some really great news

In that case your statement is confusing me.

Quote "The grounding is specific to the switched pcb, in not switched mode, with the SUT and one input. So would not apply to other configurations. Is anyone getting hum?"

Can you explain so that non technical bods can understand please ?

What you seem to be saying is "one input", "non switched mode" and "SUT" ?
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  #13  
Old 23rd March 2011, 05:26 PM
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Wink Re: Some really great news

That is what I'm saying. Without the SUT the grounding isn't critical.

Dave
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  #14  
Old 23rd March 2011, 06:19 PM
Guy Pettigrew Guy Pettigrew is offline
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Default Re: Some really great news

My phono 3 is the non-switchable, single input type with SUTs.

Just turned the system up to max and no hum, just valve hiss.

Does this help or confuse things?!

Guy
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  #15  
Old 23rd March 2011, 06:20 PM
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BOONDI BOONDI is offline
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Default Re: Some really great news

Quote:
Originally Posted by Dave Cawley View Post
That is what I'm saying. Without the SUT the grounding isn't critical.

Dave
What is a sut please????/
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  #16  
Old 23rd March 2011, 06:21 PM
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Dave Cawley Dave Cawley is offline
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Wink Re: Some really great news

Hi Guy, that is good!

SUT = step up transformer.

Dave
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  #17  
Old 23rd March 2011, 06:24 PM
colin.hepburn colin.hepburn is offline
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Default Re: Some really great news

My custom WD phono II
don't have hum or hiss ether and thats feeding it in to a solid state Amp
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Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s
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  #18  
Old 23rd March 2011, 06:30 PM
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Dave Cawley Dave Cawley is offline
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Lightbulb Re: Some really great news

Wow! no hiss at all?
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  #19  
Old 23rd March 2011, 06:38 PM
colin.hepburn colin.hepburn is offline
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Default Re: Some really great news

No not a realistic volume level but to be far I can’t say if theirs hiss at volume levels that the whole street can hear but there’s a lot to be said about adding good parts a more smoothing cap
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Turntable Rega 3 custom RB250 with ortofon 2M Blue /other goldring 1042 /WD phono2 /WD CF pre custom converted /WD psu2 /home built JE Labs Single Ended 6SL7/KT66/Speakers Frugal horns Mk1s
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  #20  
Old 23rd March 2011, 06:40 PM
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Dave Cawley Dave Cawley is offline
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Wink Re: Some really great news

No not a realistic volume level Mmmm, I think we can all say that. Not sure how smoothing caps help hiss though?
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