Home » The PARIS Forums » PARIS: Main » eliminating hummmmmArgh!
| eliminating hummmmmArgh! [message #65034] |
Tue, 28 February 2006 15:24  |
cujo
Messages: 285
Registered: July 2005
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Senior Member |
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Ok, I was working whit a singer last night tryin out my NOS tube,
The mic was sounding nice, then I hear a faint hum.
Argg, I made sure the body of the mic was tight, and all that.
So today I decided to test (The client never even heard the hum)
Turns out it is not the mic, but seems to be coming from my compressor rack.
Nothing has changed although it is an old house, but I did have it grounded
last summer.
Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
I am going to do some trouble shooting, but I am thinking about a conditioner,
I ahve heard they don;t do a hell of a lot though.
Anyone have any ideas?
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| Re: eliminating hummmmmArgh! [message #65035 is a reply to message #65034] |
Tue, 28 February 2006 14:22  |
EK Sound
Messages: 939
Registered: June 2005
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Senior Member |
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If you have a bag full of cash laying around...
http://www.furmansound.com/products/pro/blncd/it-20.php
David.
Cujo wrote:
> Ok, I was working whit a singer last night tryin out my NOS tube,
> The mic was sounding nice, then I hear a faint hum.
> Argg, I made sure the body of the mic was tight, and all that.
> So today I decided to test (The client never even heard the hum)
> Turns out it is not the mic, but seems to be coming from my compressor rack.
> Nothing has changed although it is an old house, but I did have it grounded
> last summer.
> Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
> I am going to do some trouble shooting, but I am thinking about a conditioner,
> I ahve heard they don;t do a hell of a lot though.
> Anyone have any ideas?
>
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| Re: eliminating hummmmmArgh! [message #65036 is a reply to message #65035] |
Tue, 28 February 2006 15:36 |
cujo
Messages: 285
Registered: July 2005
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Senior Member |
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perfect! Now I'll just forget the Purple Audio M77 I was thinking about.
Hol;y crap. My luck and it wouldn't work!
EK Sound <askme@nospam.com> wrote:
>If you have a bag full of cash laying around...
>
>http://www.furmansound.com/products/pro/blncd/it-20.php
>
>David.
>
>Cujo wrote:
>
>> Ok, I was working whit a singer last night tryin out my NOS tube,
>> The mic was sounding nice, then I hear a faint hum.
>> Argg, I made sure the body of the mic was tight, and all that.
>> So today I decided to test (The client never even heard the hum)
>> Turns out it is not the mic, but seems to be coming from my compressor
rack.
>> Nothing has changed although it is an old house, but I did have it grounded
>> last summer.
>> Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
>> I am going to do some trouble shooting, but I am thinking about a conditioner,
>> I ahve heard they don;t do a hell of a lot though.
>> Anyone have any ideas?
>>
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| Re: eliminating hummmmmArgh! [message #65037 is a reply to message #65034] |
Tue, 28 February 2006 15:05 |
Tony Benson
Messages: 453
Registered: June 2006
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Senior Member |
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From what I've read, conditioners don't do a whole lot to reduce hum. A
balanced power transformer unit is the way to go. It's near the top of my
list of purchases this year. The Furman and Equitech stuff looks nice. There
may less expensive options out there, but I haven't done any research on it
yet.
Tony
"Cujo" <chris@nospamapplemanstudio.com> wrote in message
news:4404cd89$1@linux...
>
>
> Ok, I was working whit a singer last night tryin out my NOS tube,
> The mic was sounding nice, then I hear a faint hum.
> Argg, I made sure the body of the mic was tight, and all that.
> So today I decided to test (The client never even heard the hum)
> Turns out it is not the mic, but seems to be coming from my compressor
> rack.
> Nothing has changed although it is an old house, but I did have it
> grounded
> last summer.
> Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
> I am going to do some trouble shooting, but I am thinking about a
> conditioner,
> I ahve heard they don;t do a hell of a lot though.
> Anyone have any ideas?
>
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| Re: eliminating hummmmmArgh! [message #65038 is a reply to message #65037] |
Tue, 28 February 2006 16:19 |
cujo
Messages: 285
Registered: July 2005
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Senior Member |
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Yeah, it may be the thing, I'll have to look in to it.
For now, I'll try to hunt the source.
"Tony Benson" <tony@standinghampton.com> wrote:
>From what I've read, conditioners don't do a whole lot to reduce hum. A
>balanced power transformer unit is the way to go. It's near the top of my
>list of purchases this year. The Furman and Equitech stuff looks nice. There
>may less expensive options out there, but I haven't done any research on
it
>yet.
>
>Tony
>
>"Cujo" <chris@nospamapplemanstudio.com> wrote in message
>news:4404cd89$1@linux...
>>
>>
>> Ok, I was working whit a singer last night tryin out my NOS tube,
>> The mic was sounding nice, then I hear a faint hum.
>> Argg, I made sure the body of the mic was tight, and all that.
>> So today I decided to test (The client never even heard the hum)
>> Turns out it is not the mic, but seems to be coming from my compressor
>> rack.
>> Nothing has changed although it is an old house, but I did have it
>> grounded
>> last summer.
>> Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
>> I am going to do some trouble shooting, but I am thinking about a
>> conditioner,
>> I ahve heard they don;t do a hell of a lot though.
>> Anyone have any ideas?
>>
>
>
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| Re: eliminating hummmmmArgh! [message #65040 is a reply to message #65038] |
Tue, 28 February 2006 16:40 |
cujo
Messages: 285
Registered: July 2005
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Senior Member |
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A minor mystery, Seems liek the hum went wen I took down the tube mic and
put it away.
Although, patching the mic direct into paris did not give me the problem.
But putting it into my compressor did, but then it seemed like patching any
of the comrpessors in to paris gave me the hum. (even thought the mic was
not patched in to it) The tube mic is plugged in in another room. My guess
is someone in the area was messing with the power, but it could be due to
the mic itself. More testing tomorrow. I'll put the mic back up.
"Cujo" <chris@nospamapplemanstudio.com> wrote:
>
>
>
>Yeah, it may be the thing, I'll have to look in to it.
>For now, I'll try to hunt the source.
>
>
>"Tony Benson" <tony@standinghampton.com> wrote:
>>From what I've read, conditioners don't do a whole lot to reduce hum. A
>
>>balanced power transformer unit is the way to go. It's near the top of
my
>
>>list of purchases this year. The Furman and Equitech stuff looks nice.
There
>
>>may less expensive options out there, but I haven't done any research on
>it
>>yet.
>>
>>Tony
>>
>>"Cujo" <chris@nospamapplemanstudio.com> wrote in message
>>news:4404cd89$1@linux...
>>>
>>>
>>> Ok, I was working whit a singer last night tryin out my NOS tube,
>>> The mic was sounding nice, then I hear a faint hum.
>>> Argg, I made sure the body of the mic was tight, and all that.
>>> So today I decided to test (The client never even heard the hum)
>>> Turns out it is not the mic, but seems to be coming from my compressor
>
>>> rack.
>>> Nothing has changed although it is an old house, but I did have it
>>> grounded
>>> last summer.
>>> Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
>>> I am going to do some trouble shooting, but I am thinking about a
>>> conditioner,
>>> I ahve heard they don;t do a hell of a lot though.
>>> Anyone have any ideas?
>>>
>>
>>
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| Re: eliminating hummmmmArgh! [message #65049 is a reply to message #65034] |
Wed, 01 March 2006 01:51 |
Dimitrios
Messages: 1056
Registered: August 2005
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Senior Member |
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Hum is coming from bad power supply design.
I suspect that it is your mic's power supply.
It needs more filtering inside with bigger electrolytics.
Putting in parallel some hefty ìF's more can reduce hum and noise !
If youy are not familiar or experienced with power supply mods don't try
it !!
Find alocal repairman and ask him to add some ìF at the output of the fillament
vlotage and the anode voltage.
I am pretty sure it uses 6V for fillament so just before this 6V goes out
of the power supply put a 3300-4700uF/16V electrolytic with negative to the
ground.
Same for anode voltage, might be 120V-170V so put a 22uF/250V there.
Hope this helps.
Regards,
Dimitrios
"Cujo" <chris@nospamapplemanstudio.com> wrote:
>
>
>Ok, I was working whit a singer last night tryin out my NOS tube,
>The mic was sounding nice, then I hear a faint hum.
>Argg, I made sure the body of the mic was tight, and all that.
>So today I decided to test (The client never even heard the hum)
>Turns out it is not the mic, but seems to be coming from my compressor rack.
>Nothing has changed although it is an old house, but I did have it grounded
>last summer.
>Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
>I am going to do some trouble shooting, but I am thinking about a conditioner,
>I ahve heard they don;t do a hell of a lot though.
>Anyone have any ideas?
>
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| Re: eliminating hummmmmArgh! [message #65052 is a reply to message #65034] |
Wed, 01 March 2006 01:48 |
rick
Messages: 1976
Registered: February 2006
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Senior Member |
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any florescent bulbs in the house...including those little ones?
On 1 Mar 2006 09:24:09 +1000, "Cujo" <chris@nospamapplemanstudio.com>
wrote:
>
>
>Ok, I was working whit a singer last night tryin out my NOS tube,
>The mic was sounding nice, then I hear a faint hum.
>Argg, I made sure the body of the mic was tight, and all that.
>So today I decided to test (The client never even heard the hum)
>Turns out it is not the mic, but seems to be coming from my compressor rack.
>Nothing has changed although it is an old house, but I did have it grounded
>last summer.
>Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
>I am going to do some trouble shooting, but I am thinking about a conditioner,
>I ahve heard they don;t do a hell of a lot though.
>Anyone have any ideas?
|
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| Re: eliminating hummmmmArgh! [message #65056 is a reply to message #65049] |
Wed, 01 March 2006 06:35 |
cujo
Messages: 285
Registered: July 2005
|
Senior Member |
|
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All good ideas,
I will check out more when I get home tonight.
D, you think it is still the PS even though the mic was not humming when
put stright into Paris? soething that t start to do when I plug into the
comp?
How is the U47 project going?
"Dimitrios" <musurgio@otenet.gr> wrote:
>
>
>
>Hum is coming from bad power supply design.
>I suspect that it is your mic's power supply.
>It needs more filtering inside with bigger electrolytics.
>Putting in parallel some hefty ìF's more can reduce hum and noise !
>If youy are not familiar or experienced with power supply mods don't try
>it !!
>Find alocal repairman and ask him to add some ìF at the output of the fillament
>vlotage and the anode voltage.
>I am pretty sure it uses 6V for fillament so just before this 6V goes out
>of the power supply put a 3300-4700uF/16V electrolytic with negative to
the
>ground.
>Same for anode voltage, might be 120V-170V so put a 22uF/250V there.
>Hope this helps.
>Regards,
>Dimitrios
>
>"Cujo" <chris@nospamapplemanstudio.com> wrote:
>>
>>
>>Ok, I was working whit a singer last night tryin out my NOS tube,
>>The mic was sounding nice, then I hear a faint hum.
>>Argg, I made sure the body of the mic was tight, and all that.
>>So today I decided to test (The client never even heard the hum)
>>Turns out it is not the mic, but seems to be coming from my compressor
rack.
>>Nothing has changed although it is an old house, but I did have it grounded
>>last summer.
>>Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
>>I am going to do some trouble shooting, but I am thinking about a conditioner,
>>I ahve heard they don;t do a hell of a lot though.
>>Anyone have any ideas?
>>
>
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| Re: eliminating hummmmmArgh! [message #65061 is a reply to message #65056] |
Wed, 01 March 2006 08:52 |
Dimitrios
Messages: 1056
Registered: August 2005
|
Senior Member |
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I suspect yes.
A not so great power supply shows its ugly head on some circumstances.
Maybe compressor is unbalanced while Paris is balanced on its inputs.
Hum nad noise is a vey strange thing.
Regarding my mic, thank you for the concern, yes it is ready.
It sounds great looks very nice.
I will soon will have a special website for it.
Regards,
Dimitrios
"cujo" <chris@nospamapplemanstudio.com> wrote:
>
>
>All good ideas,
>I will check out more when I get home tonight.
>D, you think it is still the PS even though the mic was not humming when
>put stright into Paris? soething that t start to do when I plug into the
>comp?
>
>How is the U47 project going?
>
>
>"Dimitrios" <musurgio@otenet.gr> wrote:
>>
>>
>>
>>Hum is coming from bad power supply design.
>>I suspect that it is your mic's power supply.
>>It needs more filtering inside with bigger electrolytics.
>>Putting in parallel some hefty ìF's more can reduce hum and noise !
>>If youy are not familiar or experienced with power supply mods don't try
>>it !!
>>Find alocal repairman and ask him to add some ìF at the output of the fillament
>>vlotage and the anode voltage.
>>I am pretty sure it uses 6V for fillament so just before this 6V goes out
>>of the power supply put a 3300-4700uF/16V electrolytic with negative to
>the
>>ground.
>>Same for anode voltage, might be 120V-170V so put a 22uF/250V there.
>>Hope this helps.
>>Regards,
>>Dimitrios
>>
>>"Cujo" <chris@nospamapplemanstudio.com> wrote:
>>>
>>>
>>>Ok, I was working whit a singer last night tryin out my NOS tube,
>>>The mic was sounding nice, then I hear a faint hum.
>>>Argg, I made sure the body of the mic was tight, and all that.
>>>So today I decided to test (The client never even heard the hum)
>>>Turns out it is not the mic, but seems to be coming from my compressor
>rack.
>>>Nothing has changed although it is an old house, but I did have it grounded
>>>last summer.
>>>Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
>>>I am going to do some trouble shooting, but I am thinking about a conditioner,
>>>I ahve heard they don;t do a hell of a lot though.
>>>Anyone have any ideas?
>>>
>>
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| Re: eliminating hummmmmArgh! [message #65090 is a reply to message #65061] |
Thu, 02 March 2006 07:19 |
cujo
Messages: 285
Registered: July 2005
|
Senior Member |
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Hey D,
Can't wait to see more about the mic.
So this P/S mod, can say a Guitar amp repair guy handle it?
"Dimitrios" <musurgio@otenet.gr> wrote:
>
>
>I suspect yes.
>A not so great power supply shows its ugly head on some circumstances.
>Maybe compressor is unbalanced while Paris is balanced on its inputs.
>Hum nad noise is a vey strange thing.
>
>Regarding my mic, thank you for the concern, yes it is ready.
>It sounds great looks very nice.
>I will soon will have a special website for it.
>Regards,
>Dimitrios
>"cujo" <chris@nospamapplemanstudio.com> wrote:
>>
>>
>>All good ideas,
>>I will check out more when I get home tonight.
>>D, you think it is still the PS even though the mic was not humming when
>>put stright into Paris? soething that t start to do when I plug into the
>>comp?
>>
>>How is the U47 project going?
>>
>>
>>"Dimitrios" <musurgio@otenet.gr> wrote:
>>>
>>>
>>>
>>>Hum is coming from bad power supply design.
>>>I suspect that it is your mic's power supply.
>>>It needs more filtering inside with bigger electrolytics.
>>>Putting in parallel some hefty ìF's more can reduce hum and noise !
>>>If youy are not familiar or experienced with power supply mods don't try
>>>it !!
>>>Find alocal repairman and ask him to add some ìF at the output of the
fillament
>>>vlotage and the anode voltage.
>>>I am pretty sure it uses 6V for fillament so just before this 6V goes
out
>>>of the power supply put a 3300-4700uF/16V electrolytic with negative to
>>the
>>>ground.
>>>Same for anode voltage, might be 120V-170V so put a 22uF/250V there.
>>>Hope this helps.
>>>Regards,
>>>Dimitrios
>>>
>>>"Cujo" <chris@nospamapplemanstudio.com> wrote:
>>>>
>>>>
>>>>Ok, I was working whit a singer last night tryin out my NOS tube,
>>>>The mic was sounding nice, then I hear a faint hum.
>>>>Argg, I made sure the body of the mic was tight, and all that.
>>>>So today I decided to test (The client never even heard the hum)
>>>>Turns out it is not the mic, but seems to be coming from my compressor
>>rack.
>>>>Nothing has changed although it is an old house, but I did have it grounded
>>>>last summer.
>>>>Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
>>>>I am going to do some trouble shooting, but I am thinking about a conditioner,
>>>>I ahve heard they don;t do a hell of a lot though.
>>>>Anyone have any ideas?
>>>>
>>>
>
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| Re: eliminating hummmmmArgh! [message #65096 is a reply to message #65035] |
Thu, 02 March 2006 09:41 |
Deej [1]
Messages: 2149
Registered: January 2006
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Senior Member |
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I've got one of the older IT 1210 model around here. It definitely lowers
the noise floor. I did have one preamp that was setting up some 60Hz racket
and this thing cured it. O yeah, and it only weighs about 60 lbs.
;o)
"EK Sound" <askme@nospam.com> wrote in message news:4404ce94$1@linux...
> If you have a bag full of cash laying around...
>
> http://www.furmansound.com/products/pro/blncd/it-20.php
>
> David.
>
> Cujo wrote:
>
> > Ok, I was working whit a singer last night tryin out my NOS tube,
> > The mic was sounding nice, then I hear a faint hum.
> > Argg, I made sure the body of the mic was tight, and all that.
> > So today I decided to test (The client never even heard the hum)
> > Turns out it is not the mic, but seems to be coming from my compressor
rack.
> > Nothing has changed although it is an old house, but I did have it
grounded
> > last summer.
> > Oh and yeas the power is sort mickey mouse with 6 way surge protectors,
> > I am going to do some trouble shooting, but I am thinking about a
conditioner,
> > I ahve heard they don;t do a hell of a lot though.
> > Anyone have any ideas?
> >
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