undercoupling
overcoupling
step-up transformer
doubler
splitter
Darlington
remodulation
step-down transformer
iPodification
digital pre-distortion
traveller
syntonization
multiple transformer
intermediate switch
crossover cable
handshake
push-pull amplifier
Y-splitter
Tesla coil
cut-out
demultiplexer
double adapter
metadyne
attenuator
distribution transformer
comodulation
null modem
synchromesh
single-sideband modulation
variocoupler
electronic converter
out-of-band signaling
coupling
converter
voltage regulator
proration
biamping
photomodulation
time stretch analog-to-digital converter
chain drive
isolation transformer
emitter-coupled logic
connectology
downmodulation
contact
transverter
switch
voltage divider
parallel circuit
equaliser