You wrote:
>
>At 11:12 PM 6/17/97 -0700, you wrote:
>>I have several problems with my tach. First off it reads about 1500
RPM
>>too high for the speed. Secondly, it sometimes just bounces from pin
to
>>pin..back and forth. And then sometimes it does not work at all.
>>BTW it seems that electrical load has some effect on it also. Like,
>>switching the lights on will change its behavier. Really weird..
Any
>>Ideas?
>>
>>Steve Robbins
>>New Albany, MS
>>1965 Series V
>>B395000767 LRX
>>
>
Problems of this kind are not rare. The electronics are 30+ years old
and not as robust as today's electronic components.
They can be fixed, and common problems are leaky capacitor , an out of
spec thermister or dirty variable resistor that is used to set the
calibration. These components are inside the can, which comes apart
quite easily.
I have a schematic which I can look for if its needed, and not
available on the net.
John
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