Hello all,
I moved house the other day and somehow or other managed to loose/misplace
the power supply for my Pink Triangle PT1. I'm totally ignorant on all
things like this so what sort of power supply do I want?

They were designed to be run at 9V DC but my old supply was 12V.
It had a 3.5mm Jack plug.

That's all I know.

Thank you

David

Well for a start I'd make sure its one of the analogue type, some of the
switch mode ones might look nice but they do not seem to like motors being
run off of them.
Really you need to have some idea of the current drain to find one that
works, then its just finding one with the right output and current rating
with the plug round the right way. I was thinking along the lines of the old
Sinclair ZX81 supply.
do you know if it was regulated. Its sounds unlikely if it said 12 v and it
runs on 9.
Brian

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From the Sofa of Brian Gaff Reply address is active
"David B" wrote in message
...
Hello all,
I moved house the other day and somehow or other managed to loose/misplace
the power supply for my Pink Triangle PT1. I'm totally ignorant on all
things like this so what sort of power supply do I want?

They were designed to be run at 9V DC but my old supply was 12V.
It had a 3.5mm Jack plug.

That's all I know.

Thank you

David

In article ,
Brian Gaff wrote:
Well for a start I'd make sure its one of the analogue type, some of the
switch mode ones might look nice but they do not seem to like motors
being run off of them.

And an analogue one with a poor transformer may well induce hum into the
pickup cart. ;-)

--
*Why do we say something is out of whack? What is a whack?

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

Yes, but that means it has poor regulation, which is why i wondered whether
the original was regulated. You can have psus where all that is in the box
is a transformer, right the way up to having complex regulators inside. it
really does depend on the design. This I suspect is where using a good
search engine to find technical details about the product is the way to go
here. though its unlikely to harm the unit if you get the polarity, and
voltage right, it can make the turntable work far below par in many ways.
Brian

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From the Sofa of Brian Gaff Reply address is active
"Dave Plowman (News)" wrote in message
...
In article ,
Brian Gaff wrote:
Well for a start I'd make sure its one of the analogue type, some of the
switch mode ones might look nice but they do not seem to like motors
being run off of them.

And an analogue one with a poor transformer may well induce hum into the
pickup cart. ;-)

--
*Why do we say something is out of whack? What is a whack?

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

"Brian Gaff" wrote in message
...
From the Sofa of Brian Gaff Reply address is active
"Dave Plowman (News)" wrote in message
...
In article ,
Brian Gaff wrote:
Well for a start I'd make sure its one of the analogue type, some of
the
switch mode ones might look nice but they do not seem to like motors
being run off of them.

And an analogue one with a poor transformer may well induce hum into the
pickup cart. ;-)

Yes, but that means it has poor regulation, which is why i wondered
whether the original was regulated. You can have psus where all that is in
the box is a transformer, right the way up to having complex regulators
inside. it really does depend on the design. This I suspect is where using
a good search engine to find technical details about the product is the
way to go here. though its unlikely to harm the unit if you get the
polarity, and voltage right, it can make the turntable work far below
par in many ways.
Brian


The problem is with early DC Pink Triangle turntables is that they were
notorious for chucking any old 9V (or in my case 12V) power supply that they
could get hold of with them. They are all different. I think they just
grabbed them from second hand scalextric sets!

David

In article ,
David B wrote:
The problem is with early DC Pink Triangle turntables is that they were
notorious for chucking any old 9V (or in my case 12V) power supply that
they could get hold of with them. They are all different. I think
they just grabbed them from second hand scalextric sets!

Assuming the unit has on board regulation, the actual PS may not be that
important - just adequate.

--
*I'm not your type. I'm not inflatable.

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

"Dave Plowman (News)" wrote in message
...
In article ,
David B wrote:
The problem is with early DC Pink Triangle turntables is that they were
notorious for chucking any old 9V (or in my case 12V) power supply that
they could get hold of with them. They are all different. I think
they just grabbed them from second hand scalextric sets!

Assuming the unit has on board regulation, the actual PS may not be that
important - just adequate.


Great, that's all I needed to hear. I assume that that was their belief
too, hence the various supplies.

Regards

David

In article , Dave Plowman (News)
wrote:
In article , David B
wrote:
The problem is with early DC Pink Triangle turntables is that they
were notorious for chucking any old 9V (or in my case 12V) power
supply that they could get hold of with them. They are all different.
I think they just grabbed them from second hand scalextric sets!

Assuming the unit has on board regulation, the actual PS may not be that
important - just adequate.

My only contact with the PT is that one of the people in my old research
group had one and it went wrong many years ago. I can't recall the details
now but I think one resistor was being used as a series dropper and was
under-rated so eventually fried. Overall, not impressed with the design of
the electronics.

Jim

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Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
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Audio Misc http://www.audiomisc.co.uk/index.html

Yes, Pure DAB radios used to do this I noticed. Ferguson, Goodmans,
unpronouncable ones, any old one!

Brian

--
From the Sofa of Brian Gaff Reply address is active
"David B" wrote in message
...
"Dave Plowman (News)" wrote in message
...
In article ,
David B wrote:
The problem is with early DC Pink Triangle turntables is that they were
notorious for chucking any old 9V (or in my case 12V) power supply that
they could get hold of with them. They are all different. I think
they just grabbed them from second hand scalextric sets!

Assuming the unit has on board regulation, the actual PS may not be that
important - just adequate.


Great, that's all I needed to hear. I assume that that was their belief
too, hence the various supplies.

Regards

David