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I don't have any 1.6a fuses so just ordered some, will have to wait until they arrive for future testing. _________ 40W or 60W conventional tungsten filament lamp - only have a 100w bulb suitable lamp holder, check 13A plug, check 3A, ???? two or three core flex, check suitable mains connection bloc...

So should I just forget about the old DIN plug and replace it add a new fuse and see where I'm at then??

Steve..

I retested the PSU tabs and got these reading, blue to green gives 0.4 ohms green to white gives 0.6 ohms white to orange gives 0.6 ohms I also retested blue to the din pins and took pics so you can see pins 1,2 and 5 seem to be connected. Pin1.JPG Pin 2.JPG Pin5.JPG I've ordered a new din plug so I...

BTW the fuse is a T1.6a, and why would you put a fuse inside a sealed case???
Also I was thinking when testing the tabs in the PSU the reading is always going to be false if as it seems 1,2 &4 are connected!
Would it be a good idea to disconnect the wires then test?

So I'm going to go back a few steps because like an idiot I had the meter set to 200k!!! my sincerest apologies for any annoyance that may cause.
In the meantime after 3 hours, sore thumbs and index fingers I've managed to get to this with the din plug, I now hate moulded plugs.

Do you mean the din plug cover?
I'll see what I can do tomorrow.

Steve..

Yes unplugged! I just rechecked and I get the same results.
I have an adaptor that turns it into a 3 pin UK plug.

No it has a shaver type plug but the label states 'input 220/240 AC' so assumed it was OK to plug in.

So I opened the PSU to a big surprise,, it's nothing like the photo!! However I did my best and got,, blue to green gives 00.0 ohms green to white gives 00.0 ohms white to orange gives 00.0 ohms 1 - blue connects pins 1,2,& 5. 00.0 ohms 2 - green connects pins 1,2,& 5. 00.0 ohms 3 - white co...

Anyway they all read about 555.

Steve..