Truck parts Dynamometer.--telma

[tom sparks]

At 01:40  8/16/1996 CET, you wrote:
>>Other stupid ideas......
>>Build a back yard dyno out of a truck axle..... 
>
>Not so stupid... Know what a Telma is?
>It's an electromagnetic brake system used on trucks & buses.
>They are normally mounted inline with the propeller shaft.
>If you've noticed the bus driver activate braking through a
>multiposition stalk near the steering wheel, that's the control stick.
>
>They should be fairly easy to find at appropriate breakers yards.
>The nice thing about them is that the braking effect is current
>controlled. So they should need only (very) high current drivers
>to be directly controlled from a micro. They are also small and
>light in proportion to their braking effect.
>
>Einar
>
>--
>einarp at ade.no  ( Maserati Biturbo Spyder )
>
>
>
Is anybody in the U.S. on this list familiar with a "Telma"?  This sounds
like just the ticket!