Jay,
Most likely the gadget was not a diode, but a capacitor which was installed in
an effort to filter out radio noise. This was probably added on some
time after the car wos built and may or may not be necessary.
Joe
Jay Snavely wrote:
>
> I did determine my 74 TR6 does have a ballast for the coil, and I checked
> the voltages to determine it is working. I am puzzled by something though.
> When I bought the car 2 years ago, it had a very old looking coil. I dod
> not recall any markings on the coil, but it was aluminum and polished up
> pretty nice. On the one mounting bolt there was a small tubular electrical
> device which I thought was a doide. At this point, I did not understand the
> wiring at all. I think it only had one wire which may have led to the +
> terminal. I looked at some close up pictures I had taken before redoing the
> engine, but I could not see the wiring. When I got the engine rebuilt, they
> put on a new coil, which I had bought from Moss. It is the correct one for
> a 74. But the diode is now gone, and I can not find such a part in the TRF
> catalog. Am I correct in assuming the PO had done some customizing, or was
> this a factory arrangement?
>
> Jay
> 74TR6
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