UPDATING POWER SUPPLIES IN THE LOCKING ROOM...

 These old power supplies / chargers had definitely see better days.

I was given the task of updating them as they were to supply new electronic circuits amongst other things. The old units only produced a very crude 12vDC supply, which was no good at all for electronic work.

After surveying the situation I decided to upgrade them in such a way that they still looked original and authentic. The old electrics were disconnected and the new power supplies installed inside the original casing and connected to the original output terminals. These new supplies are regulated 12vDC with overload protection etc. which is much more suitable for electronic use.

The end result was very pleasing as the outward appearance looked original but the 12v supply had been updated. I installed suitable labels on each supply, calling the left hand one PS1 and the right hand PS2 (PS for Power Supply).

Right. Now on to the next task...

Dave. Feb 2026