Star Trek Lighted poster. What power supply do I need?

[Abra Cadaver]

I recently found one of these: https://www.ebay.com/itm/266643427368
I know it takes an 1/8th inch jack and I even found someone explaining the specs of the original power supply: 
input: 120VAC 60Hz 10w
Output: 12VDC
300mA
Class 2 Transformer
Positive Center {ie. + ---0)--- - }
(The original adapter is a Model: WD1E3006PTP)
I'm having trouble finding something compatible.

[jaslion]

Looks like an outer 5.5mm and inner 2.5mm 12v power supply.

 

Dime a dozen om amazon.

 

https://www.amazon.com/ALITOVE-Adapter-Converter-100-240V-5-5x2-1mm/dp/B01GEA8PQA/ref=sr_1_3?dib=eyJ2IjoiMSJ9.NdG7lJz6NP5jClxT5_rsJZPNIh3-6QKtIluTWZnrezY6VVP-TTKErXq1ZhaYpWZiusRVk_jyxpZj8alTvrg4tda9dRL5a45m2YX-l9jgP1hEaxPTRs307FwXNm9-ou7jKvfk0upbGjY4I-yqhmwtSf2j9BQbUN3F4f_Ym6EoSFxCK8MxV5DHqd8dZZcBrHH-N8uzxywF3X5AIh1wpvBbYILel-3bjbsPuQyboPGaAAI.HyO365kbJpdbFjbHMoqiTIRXu2mO39JspD5H3Is14j0&dib_tag=se&keywords=12v+power+supply&qid=1711384015&sr=8-3

 

Probably this will fit.

[jaslion]

Don't happen to have a box of random power supplies?

[Abra Cadaver]

I have a box of old power supplies of course haha.  The problem is the barrel jack like the one you linked didn't fit.  An 1/8th inch jack did (like an aux cable).  So I was thinking I needed something like this: https://www.amazon.com/Volt-Power-Adapter-3-5mm-Connector/dp/B0B11PDNF7

[jaslion]

8 hours ago, Abra Cadaver said:

I have a box of old power supplies of course haha.  The problem is the barrel jack like the one you linked didn't fit.  An 1/8th inch jack did (like an aux cable).  So I was thinking I needed something like this: https://www.amazon.com/Volt-Power-Adapter-3-5mm-Connector/dp/B0B11PDNF7

Oh what. Wait you have the poster already?

 

Got a pic of the socket? Possibly can figure out from there.

 

Either way thats waaay different from what I've seen with a quick google

[Abra Cadaver]

15 hours ago, jaslion said:

Oh what. Wait you have the poster already?

 

Got a pic of the socket? Possibly can figure out from there.

 

Either way thats waaay different from what I've seen with a quick google

Yeah I already have it. Here’s a pic 

[jaslion]

3 hours ago, Abra Cadaver said:

Yeah I already have it. Here’s a pic 

When you shine in there with a light there is no pin in the middle?

 

This seems to me like it will end up being a buy the end of the connector and solder it to a random 12v psu.

[artuc]

Why do they do that, it is gross using audio connectors for power, can end up damaging stuff if someone starts wildly plugging it into things.

 

Anyway:

 

If you can find a power supply suitable with the correct tip.

 

I have seen a few of the 3.5mm tips as an add on accessory to suit the interchangeable tip type power supplies.

 

Like so:

https://www.radioparts.com.au/product/30978030/pw8030-35mm-mono-interchangeable-dc-to-suit-switchmode-ps-to-suit-switchmode-ps

 

To give you an idea of something that may be available.

 

Other options using a suitable power supply without the right tip.

 

Somewhat more difficult, yet nicer longterm is cut the barrel plug off a suitable power supply and solder on a 3.5mm mono plug.

 

 

Easier slightly less nice option is minus the soldering and use a 3.5mm mono to screw terminal plug.

 

Chunkier, worse from a pull-out/strain relief angle but convenient and good for testing.