Of course that well designed gear gets chucked in and out of vans, and
is generally abused. After a while it gains a few 'roadie repairs', and
then the funs starts.
I lost count of the amount of back line stuff I had to rewire after the
RCDs got tripped by rotten repairs. Good ones were:
Wires s
pfarrell;283945 Wrote:
> Timothy Stockman wrote:
> > Some guitar amps were designed
> > so bad that the guitar player, with his hands touching the metal
> > strings, would get a shock on his lips if they touched the metal
> > windscreen cage of the vocal mic. A medical isolation transformer
> >
Taking me back now. I used to be the sound engineer at the Top Rank
Southampton. Everyone in the company was very twitchy, as a couple of
years before I joined the guitarist in Stone The Crows had been
electrocuted and killed on stage at the Top Rank Swansea. RCDs had been
fitted everywhere, and I
Timothy Stockman wrote:
> Some guitar amps were designed
> so bad that the guitar player, with his hands touching the metal
> strings, would get a shock on his lips if they touched the metal
> windscreen cage of the vocal mic. A medical isolation transformer
> always fixed that problem, as well as
The issue in AC powered audio equipment is usually leakage-to-ground.
This is caused by, among other things, inter-winding capacitance in the
power transformers and capacitors in mains-entry filters. In the "old"
days, when everything was connected using 2-prong mains plugs,
sometimes one could
I'm British but live in the US. Whilst the sockets in my house are
non-symmetrical and I have seen some plugs with one blade larger than
the other, the majority are symmetrical and will fit in the socket
either way around (this includes the SB PSU as it happens). I'm no
electrician but I'd always
SteveEast wrote:
> In my experience it's very common to find outlets with reversed
> polarity here in the US. So having a polarised plug doesn't always
> help!
By code in the US, it is supposed to be done properly, but as SE says,
its easy to find example that are wrong. Most serious 'handyman' s
bigfool1956;283913 Wrote:
> This should be a non-issue in the UK and the States (recent wiring), as
> we have non-reversible mains plugs/sockets, and there is a standard way
> of wiring live and neutral.
>
In my experience it's very common to find outlets with reversed
polarity here in the US.
This should be a non-issue in the UK and the States (recent wiring), as
we have non-reversible mains plugs/sockets, and there is a standard way
of wiring live and neutral.
In Continental Europe, however, this is an issue, as the type C plug is
reversible, and so you often have no way of knowing w
Of cause it is questionable. The question of this thread was answered,
thats all.
Never did a real test to detect a difference.
Since you normaly only install it once it gives me piece of mind to do
"in phase" :)
I put a marker spot on the plug if i have to change the cabling one
time.
--
Womb
seanadams;283526 Wrote:
> That's incorrect. Yes, it is the current that kills you, but how much
> current you get is a function of the voltage, per Ohms law. More
> voltage is what allows the electricity to overcome the body's
> resistance (mainly the skin), which in turn is what allows current t
seanadams;283534 Wrote:
> I don't see how that impact the (questionable) practice of reversing AC
> polarity to audio gear. What they're talking about is imbalanced loads
> across the 3-phase power grid, which is meaningless at a 110V outlet
> because it is single phase.
>
> Also I don't know if
Phil Leigh;283503 Wrote:
> You might be interested in this...
>
> http://www.marcspages.co.uk/pq/3312.htm
I don't see how that impact the (questionable) practice of reversing AC
polarity to audio gear. What they're talking about is imbalanced loads
across the 3-phase power grid, which is meanin
Phil Leigh;283507 Wrote:
> the 110/115V US supply is twice as dangerous as the UK (etc) approach
> for this reason.
That's incorrect. Yes, it is the current that kills you, but how much
current you get is a function of the voltage, per Ohms law. More
voltage is what allows the electricity to ove
pfarrell;283462 Wrote:
> seanadams wrote:
> > for your own safety if you can't
> > figure this stuff out you should not be fiddling with AC line
> voltage.
>
> AC line voltage can kill, seriously.
>
>
> --
> Pat Farrell
> http://www.pfarrell.com/
Actually to be pedantic its current that kill
Wombat;282777 Wrote:
> Don´t know exactly how this is defined electricaly but once i read how
> to connect units in Phase. I measure the Voltage between ground of the
> rca plugs to earth. The unit must be stand alone and not attached to
> others.
> Correspondending to the direction of the power
Thanks Mr. Adams for posting the link to this pdf.
The picture shows on the right top "L" for "Phase"
This fits my measurement :)
--
Wombat
Transporter -> Avantgarde based monoblocks -> self-made speakers
Wombat's Profil
seanadams wrote:
> for your own safety if you can't
> figure this stuff out you should not be fiddling with AC line voltage.
AC line voltage can kill, seriously.
--
Pat Farrell
http://www.pfarrell.com/
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Look at the top right diagram on this drawing:
http://www.americor-usa.com/americor_products/009-21Print%20WS%20%20044-11.pdf
I am trying to tell you in an unambiguous way, because left/right
male/female plug/socket is confusing.
Hot goes to the fuse. If you cut a power cable open, hot is black
Wombat;282777 Wrote:
> Don´t know exactly how this is defined electricaly but once i read how
> to connect units in Phase. I measure the Voltage between ground of the
> rca plugs to earth. The unit must be stand alone and not attached to
> others.
> Correspondending to the direction of the power
Thanks, that's it Wombat.
--
connorml
Reduce to the max!
Transporter --> Sommer Cable Epilogue (XLR) --> ME-Geithain RL 922k
SqueezeCenter 7.0 - 17793
connorml's Profile: http://forums.slimdevices.com/member.php?userid=11
Don´t know exactly how this is defined electricaly but once i read how
to connect units in Phase. I measure the Voltage between ground of the
rca plugs to earth. The unit must be stand alone and not attached to
others.
Correspondending to the direction of the power plug this voltage
changes. The d
Balanced AC Power Conditioner being tried?
--
amcluesent
amcluesent's Profile: http://forums.slimdevices.com/member.php?userid=10286
View this thread: http://forums.slimdevices.com/showthread.php?t=45195
_
It is the standard wiring for an IEC plug, and hot is the one that goes
to the fuse. What are you trying to do??
--
seanadams
seanadams's Profile: http://forums.slimdevices.com/member.php?userid=3
View this thread: http://
I want to know which pin at the power connector is hot.
--
connorml
Reduce to the max!
Transporter --> Sommer Cable Epilogue (XLR) --> ME-Geithain RL 922k
SqueezeCenter 7.0 - 17793
connorml's Profile: http://forums.slimde
seanadams wrote:
> Uh... zero degrees? Or were you asking something else?
Just a guess, the OP is probably asking about which pin is hot on the
XLR outputs. There is no official standard, altho most boxes use pin 2 hot.
--
Pat Farrell
http://www.pfarrell.com/
_
Uh... zero degrees? Or were you asking something else?
--
seanadams
seanadams's Profile: http://forums.slimdevices.com/member.php?userid=3
View this thread: http://forums.slimdevices.com/showthread.php?t=45195
___
Hello,
can anybody tell me where the Phase is at the Transporters Connector? I
don´t have a measurement device.
Thanks,
Connorml
--
connorml
Reduce to the max!
Transporter --> Sommer Cable Epilogue (XLR) --> ME-Geithain RL 922k
SqueezeCenter 7.0 - 17793
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