[TR] TR4/6 Voltage Stabilizer

[DAVID MASSEY]

 Not to be pedantic, but the original is a digital regulator.  It is composed of the bimetal spring and a heater  As the heater heats up the bimetal spring will open the contacts and switch off the heater (and the voltage to the gauges).  As the spring cools off the spring will switch the power back on and so the cycle continues giving an average voltage of 10 volts.
The electronic versions are actually analog.  They use a classic integrated circuit voltage regulator that is a tried and proven part.  If they are prone to failure it is because the designer did not make proper precautions against the very unfriendly environment a car's electric power system is.  This is especially true in older cars.  When loads are switched on and off there are voltage spikes, both positive and negative, that will far exceed the ratings on typical solid state components.  Motors are especially prone to doing this.  Heater fans, wipers, starter motors.
I have designed many custom electronic devices for my cars and I have never had one fail.  But I don't cheap out on the protection devices.  The Crane ignition module is another example of an electronic device that stands up well to the nastiness doled out by the car's electrical system.

All that said, I still run an OE voltage stabilizer in my TR6.  Never found a need to change it.
 
Dave 


 
 

 <!--#yiv2589538093 _filtered {} _filtered {}#yiv2589538093 #yiv2589538093 p.yiv2589538093MsoNormal, #yiv2589538093 li.yiv2589538093MsoNormal, #yiv2589538093 div.yiv2589538093MsoNormal {margin:0in;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv2589538093 span.yiv2589538093EmailStyle19 {font-family:"Times New Roman", serif;color:#1F497D;font-weight:normal;font-style:normal;text-decoration:none none;}#yiv2589538093 .yiv2589538093MsoChpDefault {font-size:10.0pt;} _filtered {}#yiv2589538093 div.yiv2589538093WordSection1 {}-->I went through three digital stabilizers in my TR4 before I reverted to an original analog one and haven’t had a problem since.
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