[HomeBrew] Re: RE: Homebrew Equiv. of Ameritron ALS-500M?

[DavidE Benedict]

bcromwell at michonline.net writes:
>Hi David,
>
>Automotive alternators do not have the output voltage determined by
>windings but by the drive applied to the rotor windings through the
>regulator...up to the physical capacity limits of the hardware used.
>Automotive alternators have been used for welding and for powering tools
>like electric drill motors for years. If you want to consider a 50 volt
>application you can buy a 'replacement' alternator designed for use with
>an external regulator and then make your own regulator.
>
>I would not recommend driving very far on just the battery in any
>electronically controlled, fuel injected car. The auto industry has
>considered a move to 42 volt systems to help with the huge electric load
>in these cars. Maybe they can be convinced to go all the way to 48 volts
>(really 50).
>
>Bill KU8H


Thanks, Bill... Happy Friday! 

Good information/thoughts. 

It has been a while since my initial post and I have made a few
discoveries...one of which being the details about the output voltage vs
regulators. 

Unfortunately the project is on hold for now. 

But I did buy a junkyard internal regulator type Subaru alternator &
brought out all the wires so I can mess with it...do you happen to know of
any alternators which are DESIGNED for use with external regulators?

As to running w/o alternator to the car's batt...my scheme was to only
switch from that to the amplifier when transmitting, so if a person was
not terribly long-winded there would be much less chance for problems. I
already have two batts in my vehicle so I'm a bit insulated from the
problems that way, too.

David B.