help please, what type of supply is this

[jaresquire]

Be wary though of 'DIY TNC-S' which will give a good Ze using a loop impedance meter but may not be truly earthed locally.

 

[ezzzekiel]

not 100% sure but after studying the picture im fairly confident that its some form of electric supply but im sure someone else will confirm this.

 

[SPARTYKUS]

42??? you got 20 years to go mate before even applying to the old farts club.
and then you'll probably be rejected for not being grumpy enough.

Well in that case .... ohhhhh bugger.