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St. John Smythe
electronics forum beginner
Joined: 15 Jun 2005
Posts: 37
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 Posted: Tue Jul 18, 2006 11:41 am Post subject:
Re: power supply male jacks?
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Eeyore wrote:
| Quote: | So, what's a 'jackplug' then ? LOL !
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Sounds a little hermaphroditic.
--
St. John
You should never bet against anything in science at odds of more than
about 10^12 to 1.
-Ernest Rutherford |
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Laurence Payne
electronics forum beginner
Joined: 07 Jun 2005
Posts: 11
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| Posted: Tue Jul 18, 2006 12:09 pm Post subject:
Re: power supply male jacks?
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On Tue, 18 Jul 2006 03:27:41 +0100, Eeyore
<rabbitsfriendsandrelations@REMOVETHIS.hotmail.com> wrote:
| Quote: | The jacks, by the way, are the holes; the male things are plugs.
So, what's a 'jackplug' then ? LOL !
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A plug that goes into a jack. |
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Eeyore
electronics forum Guru
Joined: 22 Jun 2006
Posts: 642
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| Posted: Tue Jul 18, 2006 2:24 pm Post subject:
Re: power supply male jacks?
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Gareth Magennis wrote:
| Quote: | "Eeyore" <rabbitsfriendsandrelations@REMOVETHIS.hotmail.com> wrote in
message news:44BC47BB.F8104CB7@REMOVETHIS.hotmail.com...
Frank Stearns wrote:
datakoll@yahoo.com writes:
if radio shack sez the unit supplies x amps and z volts
then the buyer is reasonably certain this will be true?
a level of maybe performance at a reasonable price?
Typically unregulated (at least the universal model), so at
lower-than-spec'd current draw from the device being supplied this
means that the voltage will tend to swing up. How much depends on the
actual load; whether this causes a problem or not will also depend on the
device being supplied.
If you're not in a rush and don't mind spending a few dollars more, you
might look at the regulated wall warts available from Mouser, Digikey,
etc. (RS might have such entities, but be prepared to pay way more than
they're worth.) Nice clean power, held pretty close. (Of course, if your
device wants AC, don't do this.)
Just to muddy the waters........
A DC adaptor will often work fine with an 'AC' input.
But you need to know what you're doing.
Graham
And to further muddy them - some equipment that has computing chips and
audio chips (eg an effects unit) that require an AC supply will boot up fine
if you use a DC supply, but will have no audio. This is because the 5 volts
required for the digital stuff will be generated OK but the plus and minus
supplies for the audio will not.
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I came across a fingerprint scanner that had that kind of problem once.
Graham |
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T Shadow
electronics forum beginner
Joined: 02 Jul 2006
Posts: 2
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| Posted: Tue Jul 18, 2006 3:47 pm Post subject:
Re: power supply male jacks?
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"Laurence Payne" <lpayne1NOSPAM@dslDOTpipexDOTcom> wrote in message
news:8sjpb2tc1kcd13u88ve6f9903tibo6s66h@4ax.com...
Are you sure it's not a male jackelope? |
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Arny Krueger
electronics forum addict
Joined: 13 Jun 2005
Posts: 69
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| Posted: Tue Jul 18, 2006 4:48 pm Post subject:
Re: power supply male jacks?
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<datakoll@yahoo.com> wrote in message
news:1153168840.736676.301880@s13g2000cwa.googlegroups.com
| Quote: | if radio shack sez the unit supplies x amps and z volts
then the buyer is reasonably certain this will be true?
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IME, yes.
RS just has their wall-warts custom made by some of the usual suspects. They
tend to be about average quality, which is true of just about everybody
else.
| Quote: | a level of maybe performance at a reasonable price?
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Other good sources include Jameco. |
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William Sommerwerck
electronics forum beginner
Joined: 11 Feb 2005
Posts: 8
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| Posted: Wed Jul 19, 2006 11:09 am Post subject:
Re: power supply male jacks?
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| Quote: | Sounds a little hermaphroditic.
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The most-common type of power connector for consuer equipment is
hermaphroditic. |
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Richard Crowley
electronics forum Guru Wannabe
Joined: 01 May 2005
Posts: 135
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| Posted: Wed Jul 19, 2006 1:47 pm Post subject:
Re: power supply male jacks?
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"William Sommerwerck" wrote ...
| Quote: | Sounds a little hermaphroditic.
The most-common type of power connector for consuer
equipment is hermaphroditic.
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Not by the current definition of "hermaphroditic" as
applied to connectors. Hermaphroditic means that the
connector will mate with itself, aka "genderless".
The typical consumer coaxial power connector is
not "hermaphroditic". It will not mate with itself.
The "GR" (General Radio) RF connector is an example
of a hermaphroditic connector. I use Anderson Powerpole
connectors for low-voltage DC (12 VDC) for my ham
equipment as it is becoming the standard, especially for
emergency setups where people all bring their different
equipment (and power sources) together.
http://www.andersonpower.com/products/pp/sp.html
The *pins* of those Elco-Edac connectors used in
some multi-pair connectors (like the old SVHS-
tape ADAT) are hermaphroditic, but the shells
are not. Those old-old "mic connectors" with a blob
of solder in the middle and a 5/8-27 threaded ring
are semi-hermaphroditic, but you have to un-screw
the threaded ring from one of them to mate them. |
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mc
electronics forum Guru
Joined: 29 Dec 2005
Posts: 475
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| Posted: Wed Jul 19, 2006 4:18 pm Post subject:
Re: power supply male jacks?
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<datakoll@yahoo.com> wrote in message
news:1153165103.099209.137290@h48g2000cwc.googlegroups.com...
| Quote: |
I need an AC power supply for an analog 5 watt telephone. Are the
different sizes and colors of male power jacks fixed to specific power
levels as an agreed on industry standard? That is, if a male jack fits
my phones' female power input, do I have a match for power needed and
power supplied?
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NO!!! |
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