[TR] TR4 generator

[Dave1massey at cs.com]

In a message dated 9/27/2007 5:57:03 PM Central Daylight Time, 
yellowtr at adelphia.net writes: 
> So I pulled the unit and took it down stairs for a bench test.
> 
> To my surprise it ran as a motor when I touched - to either terminal! And 
> when 
> I just touched the field terminal, it really did draw some juice.
> 
> So I guess there is a short somewhere.
> 
The dynamo should not motor with voltage applied to only the field.  Even if 
there was a fault in the field winding (a short between to windings in the 
field).  But I think you're right, there is a short.  The short is between the F 
terminal and the D terminal.  That would explain both the motoring and the 
full output under way.  you might be able to find and resolve it by pulling the 
back off of the unit.

Good luck.

Dave