[CambridgeWorks]

As a 12 year old in the 60s, I had a Saturday morning job at a small local radio/tv/electrical shop. J.H Rowell & son, Yaxley, near Peterborough.
Often going out with the owner delivering batteries, lightbulbs torches and the occasional small repair, all around the local villages.
Upon return, an emptying of waste bins in the workshop and the small main shop and then having a bonfire in the orchard.
One day, I found an Ever Ready marketing item removed from the shop window as no longer wanted. It was made of a flat card and shaped a bit like a flat metronome, with various publicity printed on it. The centre part had a thin wire needle that swung side to side, operated by a U2 battery with a small coil electromagnet that the bottom part of the pointer (with a magnet on) could freely swing left or right through. There was a simple flap switch that gave a pulse of dc each time the magnet passed through the coil. This gave continual left and right motion, sustained by the pulse through the coil repelling (or attracting?) the magnet.
I can almost picture it today, 55 years later.
How I wish I still had it, just to remind me of my initiation into this great hobby.
Rob