REVISED 2012 Edition PDF - Click HERE to view Smiths Voltage
Stabilizers Rev.01 Doug Lawson (email@example.com) June, 2006
What is covered: The following document discusses the operation
of the basic Smiths voltage stabilizer as used to operate
electrical gauges on British vehicles. Methods of replacement
and testing are also discussed. Though discussed, methods of
adjustment are not known to be accurate. (Refer to Figure 1) “E”
terminal. The “E” terminal (if marked) is the electrical
connection common to the chassis of the vehicle (ground or
Earth). It may be positive or negative depending on which
battery terminal is connected to the body of the vehicle. The
stabilizer’s case (even if unmarked) is also terminal “E”
Contact Points. These are electrical contacts inside the
stabilizer. The points act as a switch. “B” terminal. This is
the Battery connection to the voltage stabilizer. It is
typically a switched connection that is “hot” only when the
ignition switch is on. “I” terminal. This is the Instrument or