Checking voltage on new power supply for LOMO Polam microscope

Now that I have obtained a 240-115V converter for the 12V variable power supply I bought from ebay that was erroneously described as 240V when in fact it was built for American 115V electricity supply, I am able to use it for my LOMO Polam microscope. The reason for buying this power supply was to allow me to vary the intensity of the LED illuminator which does not have an inbuilt variable brightness option – the illuminator is an after-market LED modification of the original halogen bulb.

The photo below shows me in the process of checking exactly where 12V is on the dial and marking this so that I don’t use too high a voltage and damage the LEDs.

Andy

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