Identify plug

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TotalMadness

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Hi,

I have an aquarium pump to pump airthrough the water. The device is 12vac and has a small plug that I have never seen before. I have attached photos of the plug and pictures on the side of the box. I need to know the following:

1. what is it that the plug plugs into and where can I get it in the UK?
2. on the plug, which is + and which is -?

Thanks
 

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The Plug looks like an older Loudspeaker plug.
It was ( is ) used to connect HiFi Loudspeakers to the Amplifier.
You should get that on in an better HiFi Shop, or an Electronic dealer.
Sometimes in a Car accessories ( Audio ) Shop.
This plugs were there used also.

Normally the small round contact is used as + and the bigger flat is used as -.
But better test that out with an Voltmeter.
 
JimB said:
DIN plugs and sockets, all about them here:

[snip Wikipedia link]
Click to expand...

Those are DIN connectors? I thought DINs were those round multi-pin connectors used for things like keyboards and mice here in the US. So is DIN a class of connector, not a specific type?

(The ones I'm referring to have a similar layout to our XLR microphone connectors, but are smaller.)
 
DIN.. stands for disambiguation ie... uni directional ... cant plug it in wrong... connectors for dummies...etc..
 
DIN is Deutches Institut fur Normung.

They create standards for stuff, the same as the BSI (British Standards Institute), and numerous others world wide.

There are numerous DIN connectors, DIN 41612 which comes in 32, 64 and 96 ways is common for plug-in circuit boards.

On the original IBM XT computer the keyboard connector was a 180degree 5 pin DIN plug.

I am not too sure about the newer stuff (before USB).

JimB
 
Pommie said:
What makes you think it's AC?

Edit, Ahhh, you are assuming it's a vibrating diaphragm pump which requires AC to operate.

Mike.
Click to expand...

I didn't know what sort of pump it is.

It was the "12vac" in the original post, plus the fact that I had seen that type of transformer plug before, but only as an AC version.
 
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