zedman2
Newbie level 6
Dear All,
I would like to build this preamp which is from a Weishi Timegrapher, see attached pics.
I managed to figure out the circuit, but since I have only the picture of it I stuck with the smd capacitor values.
Watches are under 10Hz so the aim is to amplify the vibrations from the piezo in this freq range.
Any help would be nice.
thanks.
Zedman
I would like to build this preamp which is from a Weishi Timegrapher, see attached pics.
I managed to figure out the circuit, but since I have only the picture of it I stuck with the smd capacitor values.
Watches are under 10Hz so the aim is to amplify the vibrations from the piezo in this freq range.
Any help would be nice.
thanks.
Zedman