Thanks Alec
First, yes, the 7812 gives ~10 v as you say. But the injector circuit is separate (12 v). The pin 4 is 4 v (or was today but its almost as if things change as I test. I think I have randomly done all that you say).
but I will have another go.
Whats maddening is that different bits have seemed OK but then later they do not.
Please look out for my reply tomorrow mid morn.
Malcolm
First, yes, the 7812 gives ~10 v as you say. But the injector circuit is separate (12 v). The pin 4 is 4 v (or was today but its almost as if things change as I test. I think I have randomly done all that you say).
but I will have another go.
Whats maddening is that different bits have seemed OK but then later they do not.
Please look out for my reply tomorrow mid morn.
Malcolm
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