What has the author John Potter Shields written?

John Potter Shields has written:

'Basic piezoelectricity' -- subject(s): Piezoelectricity

'Novel electronic circuits' -- subject(s): Amateurs' manuals, Electronics

'Abc's of radio-frequency heating' -- subject(s): Induction heating

'Novel experiments with electricity' -- subject(s): Electricity, Experiments, Magnetism

'Practical power-supply circuits' -- subject(s): Electronic apparatus and appliances, Electronic circuits, Power supply