I don't know about Felder, but Bell will readily admit to being electronically challenged.

I can't think of any unique use for the tdc sensor, unless... A practical joke gizmo that takes the pulses and makes them into a farting noise that changes with engine speed :)

Alistair

> On Jul 2, 2014, at 12:21 PM, Vanagon <camping.elliott@GMAIL.COM> wrote:
> 
> Surely someone here could come up with a use for a TDC sensor! Alistair? Felder?
> 
> Sent from my 1963 maroon and cream 702B Western Electric Princess phone. 
> 
>> On Jul 2, 2014, at 9:40 AM, David Beierl <dbeierl@ATTGLOBAL.NET> wrote:
>> 
>> At 09:50 AM 7/2/2014, Jimmy Johnston wrote:
>>> was broken"  I'm in the process of giving it the once over.  I notice this
>>> port connected to the alternator.  So, my question is What goes here:
>>> 
>>> https://plus.google.com/u/0/photos?pid=6031256901473430530&oid=104110054373682507279
>> 
>> That connects to an inductive sender that signals TDC by generating a
>> small pulse (from a magnet embedded in the flywheel).  You can see
>> the other end at the top of the bellhousing.
>> 
>> Used by a VWAG diagnostic tool that's obsolete.  If you have use for
>> a TDC sensor (only works when the engine is running as the pulse is
>> proportionate to magnet speed) there it is.  Otherwise it's no use.
>> 
>> Yrs,
>> David