<VV> VirtualVairs Digest, Vol 39, Issue 115

Mr Lew Rishel lewrish at sbcglobal.net
Wed Apr 30 19:53:53 EDT 2008


>  ----------------------------------------------
>  Smitty Says:  Dang Lew, what he said was and I quote.  I ran a continuety 
> test between the positive terminal and ground and got no reading.  Now 
> that it has been deciphered, lay an answer on him.  gggg
>
> OK, Smitty, I can understand that, i think.  The normal ohms reading 
> across the tach unit would be high,  above  6 K at the power post (to 
> ground), and above 20 Meg at the signal input. If the reading is indeed 
> open, the tach is defective, obviously. However, Smitty, he did say 'the 
> sending unit'  and that confused me, because the sending unit for the tach 
> is the distributor, unless things have changed recently. Have they ??
Now, I have the proper signal generator to provide signal to the tach, so I 
can calibrate it correctly. Forget this nonsense about 60 Hz, etc. Half-wave 
means the tops of the sine waves are lopped off, this does not change the 
frequency. Anybody want argue this ??
Lew 



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