agent
alembic
alterant
alterative
alterer
anvil
caldron
catalyst
catalytic agent
crucible
engine
ferment
innovationist
innovator
introducer
lathe
leaven
machine
melting pot
modificator
modifier
mortar
motor
precursor
retort
test tube
transducer
transmogrifier
yeast
electrical device
Tesla coil
coil
step-down transformer
step-up transformer
voltage regulator
transform
transformation
alternator
amplifier
capacitors
circuit
circuitry
connectors
converter
detector
diode
dynamo
generator
inverter
reactor
rectifier
regulator
relay
resistor
transistor
transmitter
turbine
voltage
dormer
former
informer
performer
reformer
stormer
warmer