These circuits form their pulses by switching the flow of electricity tapped from a constant supply.
(electricity; tapped; ) (These circuits; form; their pulses) Context(These circuits form,List([0, 19))):(These circuits; form their pulses by switching; the flow of electricity)
These circuits form,List([0, 19))
electricity These circuits These circuits
tapped form form their pulses by switching
their pulses
the flow of electricity