Stonker or stinker?
 

On Tue, 28 Aug 2007 15:07:34 +0100, "Keith G"
wrote:

On the microphone front - been through the 1st phase (nasty, tinny sound
at 'normal' levels) and the 2nd phase (prolonged, self-generated noise
not unlike the landing beach scenes in Saving Private Ryan) and now in
the 3rd phase (strangely quiet again and back to the original tinny
sound)!! I'm letting it have its head for the moment - it's going to be
a bit of a challenge and if anybody was considering going the same
route, I would say keep your hand in your pocket, atm!!

What are you running it into?

Stonker or stinker?
 

In article ,
Keith G wrote:
Question - I have a mic amp here which I don't *think* supplies phantom
power - what would happen if I try it and the mic gets phantom power it
doesn't need/want?

The whole principle of phantom is that it doesn't effect non phantom mics
on the circuit. There is no potential difference between the A&B legs -
just between them and ground.

--
*If only you'd use your powers for good instead of evil.

Dave Plowman London SW
To e-mail, change noise into sound.

Stonker or stinker?
 

"Don Pearce" wrote

My thoughts on child labour tend towards the pragmatic. If they aren't
building mics, the alternative is usually prostitution.


Or having body parts removed for chump change....


Doing nothing
when your family is starving is not an option.


Quite....


It looks like the mic has a transformer output, so it shouldn't matter
whether there is phantom on the line or not. Best to turn it off,
though. As for the strange sounds, it may be that the mic has picked
up some condensation in transit - or was it sealed with some silica
gel?


I have sent you some links direct to see if you can tell if the SS mic
amp I have been given supplies Phantom Power or not - I don't want to
risk frying anything!!

The valve mic seems to be settling down (been on for a while now) -
here's a little movie of the preamp's meter a while back:

http://www.apah69.dsl.pipex.com/show/SelfNoise.wmv


Busy, eh? :-)

Stonker or stinker?
 

"Phil Allison" wrote in message
...

"Keith G"
"Phil Allison"

** The Chinese do - wherever a via is really needed

12 year olds with bare feet, standing on a dirt floor in a big
galvanised
iron shed with a diesel gene droning on outside copying sample PCBs.

True enough - I suspect the 12 year olds are the ones approaching
retirement age, though.


I haven't been to China and I haven't seen for myself, but I
suspect/hope the views expressed above are not true or, if they are,
I'm pretty certain they won't last for long.


** He says - arguing foolishly from a position of self admitted
ignorance.


It's foolish to admit ignorance?

How else is anyone ever gonna find anything out?



Wise up and ask someone who has really been there and seen the
conditions first hand - as I did.

Performing light assembly by hand in dirt floor sheds is nice work
under nice conditions, for rural China.


See my mention of the movie 'Not One Less' - if it bears any resemblance
whatsover to reality (and I believe it does - none of the characters are
played by professional actors for a start), it kinda implies that in
rural China dirt floors are not uncommon. I think you are making the
mistake that *less Western* nations (who don't have Chav fake wood panel
flooring) automatically have no life?



For the opposite - check out the Chinese factories making tubes for
compact fluorescent lamps, the ones we are now told are so efficient &
planet friendly we HAVE to use them, like it or not.

There is liquid mercury and its toxic compounds lying all over the
floors.


Don't make the mistake of thinking that sort of thing is exclusive to
China - parts of East Anglia glow green at night from the queer ****
that's being dumped there, I'm led to believe!!

Stonker or stinker?
 

"Laurence Payne" NOSPAMlpayne1ATdsl.pipex.com wrote in message
...
On Tue, 28 Aug 2007 15:07:34 +0100, "Keith G"
wrote:

On the microphone front - been through the 1st phase (nasty, tinny
sound
at 'normal' levels) and the 2nd phase (prolonged, self-generated noise
not unlike the landing beach scenes in Saving Private Ryan) and now in
the 3rd phase (strangely quiet again and back to the original tinny
sound)!! I'm letting it have its head for the moment - it's going to
be
a bit of a challenge and if anybody was considering going the same
route, I would say keep your hand in your pocket, atm!!

What are you running it into?


Atm, a little valve mic pramp, as in this movie:

http://www.apah69.dsl.pipex.com/show/SelfNoise.wmv

But I have another SS mic amplifier which hopefully doesn't supply
Phantom Power which I would try/use (if it works - I have been given it
and never powered it up yet) to cut down the 'valve on valve' in the
chain...

http://www.apah69.dsl.pipex.com/show/MicAmp01.JPG

http://www.apah69.dsl.pipex.com/show/MicAmp02.JPG

http://www.apah69.dsl.pipex.com/show/MicAmp03.JPG

http://www.apah69.dsl.pipex.com/show/MicAmp04.JPG

http://www.apah69.dsl.pipex.com/show/MicAmp05.JPG


I have emailed these links to Don, but I'll take a show of hands if
anyone can clearly see from the pix! (I've no bloody idea!! :-)

Stonker or stinker?
 

"Dave Plowman (News)" wrote in message
...
In article ,
Keith G wrote:
Question - I have a mic amp here which I don't *think* supplies
phantom
power - what would happen if I try it and the mic gets phantom power
it
doesn't need/want?

The whole principle of phantom is that it doesn't effect non phantom
mics
on the circuit. There is no potential difference between the A&B
legs -
just between them and ground.


OK, that's interesting but one of the auctions I was looking at for
valve mics made a fairly strong point about *not* letting the mic see
Phantom power...???

Stonker or stinker?
 

But I have another SS mic amplifier which hopefully doesn't supply
Phantom Power which I would try/use (if it works - I have been given it
and never powered it up yet) to cut down the 'valve on valve' in the
chain...

http://www.apah69.dsl.pipex.com/show/MicAmp01.JPG

http://www.apah69.dsl.pipex.com/show/MicAmp02.JPG

http://www.apah69.dsl.pipex.com/show/MicAmp03.JPG

http://www.apah69.dsl.pipex.com/show/MicAmp04.JPG

http://www.apah69.dsl.pipex.com/show/MicAmp05.JPG


I have emailed these links to Don, but I'll take a show of hands if
anyone can clearly see from the pix! (I've no bloody idea!! :-)

What a big box for so little content :-)

Stonker or stinker?
 

On Tue, 28 Aug 2007 16:34:55 +0100, "Keith G"
wrote:


"Don Pearce" wrote

My thoughts on child labour tend towards the pragmatic. If they aren't
building mics, the alternative is usually prostitution.


Or having body parts removed for chump change....


Doing nothing
when your family is starving is not an option.


Quite....


It looks like the mic has a transformer output, so it shouldn't matter
whether there is phantom on the line or not. Best to turn it off,
though. As for the strange sounds, it may be that the mic has picked
up some condensation in transit - or was it sealed with some silica
gel?


I have sent you some links direct to see if you can tell if the SS mic
amp I have been given supplies Phantom Power or not - I don't want to
risk frying anything!!

The valve mic seems to be settling down (been on for a while now) -
here's a little movie of the preamp's meter a while back:

http://www.apah69.dsl.pipex.com/show/SelfNoise.wmv


Busy, eh? :-)



First up, that out-of-phase thing is going on again. The two channels
are upside down from each other. And first impression is that this mic
is unbelievably much brighter than the ribbon. In fact it really
sounds far too bright. Perhaps that is something that is settling out
of the initial problems.

As for that preamp, it looks like the phantom power may be on. Does
that plastic blob on the back pull out and go in the other hole?

d

--
Pearce Consulting
http://www.pearce.uk.com

Stonker or stinker?
 

On Tue, 28 Aug 2007 16:52:28 +0100, "Keith G"
wrote:


"Dave Plowman (News)" wrote in message
...
In article ,
Keith G wrote:
Question - I have a mic amp here which I don't *think* supplies
phantom
power - what would happen if I try it and the mic gets phantom power
it
doesn't need/want?

The whole principle of phantom is that it doesn't effect non phantom
mics
on the circuit. There is no potential difference between the A&B
legs -
just between them and ground.


OK, that's interesting but one of the auctions I was looking at for
valve mics made a fairly strong point about *not* letting the mic see
Phantom power...???


It can be important when there is a wiring fault in the mic,
particularly with a ribbon mic, where it is possible to put phantom
across the ribbon and blast it out of the gap. If everything is OK,
though, there is never a problem putting phantom on a mic that doesn't
need it.

d

--
Pearce Consulting
http://www.pearce.uk.com

Stonker or stinker?
 

On Tue, 28 Aug 2007 16:52:28 +0100, "Keith G"
wrote:

OK, that's interesting but one of the auctions I was looking at for
valve mics made a fairly strong point about *not* letting the mic see
Phantom power...???

Point us at it?