UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

paulsherwin · 14th Jan 2020, 5:36 pm

A Poundland PP3 (the size used in smoke alarms) has the right voltage, though you will have to make up a connector. Make sure you connect the battery with the correct polarity if you do this. A PP3 has lower capacity than a PP7 so won't last as long, but is much cheaper and will be fine for occasional use.

14th Jan 2020, 5:36 pm	#3
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 27,967	Re: Ekco PT378 A Poundland PP3 (the size used in smoke alarms) has the right voltage, though you will have to make up a connector. Make sure you connect the battery with the correct polarity if you do this. A PP3 has lower capacity than a PP7 so won't last as long, but is much cheaper and will be fine for occasional use.