Jan 15, 2019 #1 M mikrovolt Newbie Joined Dec 17, 2010 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,311 used a fine paint pen and this drawing for a quick top side copper etch. The S9018 transistor is high gain so the bias is not as typical as for example a 2N3904. The emitter has an inductor.
used a fine paint pen and this drawing for a quick top side copper etch. The S9018 transistor is high gain so the bias is not as typical as for example a 2N3904. The emitter has an inductor.