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Old 21st May 2019, 4:56 pm   #61
TonyDuell
Dekatron
 
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,188
Default Re: Woolworths Electrical Counter

1/4" 'faston'/'lucar'/whatever you call them connectors will fit on the brass strips of the 3LR12/1289 battery. I saw that in some commercial device (it _might_ have been a battery-powered lamp in Woolworths!) and have used it myself several times. I also remember seeing in toy shops a plastc cover that fitted on top of such a battery and which had 3 or so small 2-pin sockets on it (connected in parallel, and connected to contacts to the battery in the obvious way) for doll's house lights.

As regards the 126, a friend of mine has what he calls a 'hot stick', a voltmeter for overhead power lines. In the case is a 'proving unit', a vibrator and transformer that generates a few kV to test this voltmeter before and after using it on a power line (basically, if it shows a voltage on the proving unit, says the line is dead, then shows a voltage on the proving unit again then is safe to say the line _is_ dead). Said proving unit runs from 3 126 batteries in series.
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