[TR] Electrical diagnosis: Update

[terryrs at comcast.net]

>Reference my earlier post of no ignition light with key in the "on"  
>position: Fuses are OK, checked some other connections, could not find the body  
>to engine ground strap (there must be one, right?). If this could be the  
>problem, can anyone tell me where it is? I was under and over the car, but 
>don't  see it.
 
Wondering:  the TR3A ammeter is supplied by big power.  If there was a short, would an old battery not be able to compensate while a "better" battery might?

Just curious.

Terry Smith, '59 TR3A
New Hampshire