piclist 1998\10\07\182304a >
Thread: 4 digit auto-ranging frequency-meter.
face BY : Octavio Nogueira email (remove spam text)

>The posted circuit is incomplete, for a more sensitive frequency
>counter, it needs a pre-amplifier and convert its output to TTL level.

Does anyone have a nice and simple pre-amplifier schematic for this kind
of application?


Octavio Nogueira - TakeThisOuTnogueiraRemoveMEspamSTOPspammandic.com.br ICQ# 19841898
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