Want An ADJUSTABLE Voltage Regulator?

The ad is wrong. Lowest voltage is around 13.3
This is an emergency vehicle alternator voltage regulator and Transpo owner Frank Oropeza demonstrated one of the first ones to me in 1981 in my shop. He took a pair of high amp 240vac leads and stabbed every terminal block screw trying to blow it up. It worked fine under load. The unit has a 50-amp power transistor and 10-amp driver. A voltage divider with zener rated at a full watt. Huge capacitors and Motorola MR2535 avalanche retifiers. It is impressive.

Voltage regulators control the field voltage and current in the alternator
Considering the avg installed Delco regulator is about 4 amps feild current
A 15 amp regulator should be good for several hundred amps alternator output
Connected to the avg 90 amp alternator this thing should last forever

Seems this is a 15 amp device.

Here are some install videos:

http://www.plytube.com/watch/T7Tw6Rieup4

https://www.youtube.com/watch?v=uaNB_pBfNO8

Mex-

Does this device control the V at the vehicle battery terminals? I suppose it can then be tapped off for other charging uses.