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Johnbarn · 2nd Oct 2019, 10:41 pm

Does anyone have an oscillator circuit that can prevent people using their mobile phones on the seat opposite me in a train? A short range device would be fine. Or is this a forbidden concept?

2nd Oct 2019, 10:41 pm	#1
Johnbarn Pentode Join Date: Feb 2015 Location: Belfast, Northern Ireland, UK. Posts: 130	Mobile phone interruptor Does anyone have an oscillator circuit that can prevent people using their mobile phones on the seat opposite me in a train? A short range device would be fine. Or is this a forbidden concept?