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Old 29th Apr 2021, 2:38 pm   #30
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,145
Default Re: Where are the missing PP* battery numbers?

The gaslighter battery was a U14. It only worked with town gas and was not hot enough to ignite natural gas. They produced an improved element but by that time the piezo electric types had taken over, J.
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