Instructions

ManualsBrandsMAKERFACTORY ManualsLeisure & HomeScience kit (box) MAKERFACTORY 150387 MF Elektronik-Experimente-Box

309

Fig. 3.157: Circuit

157 – Headphone

ampliﬁer with Piezo

element

Fig. 3.158: Circuit

158 – Needle pulse

generator 60 Hz

Fig. 3.159: Circuit

159 – Needle pulse

generator 150 Hz