Sweeping Tone Alarm Beeper using 4069, TIP29C, NECD882
Posts tagged Lorus beep alarm
FM wireless microphone for the President’s speech
FM wireless microphone is very simple to build and has a useful transmission range (more than 300 meters in open air). Although a small component count and 3V operating voltage it will easily penetrate more than three floors of an apartment building. This may be found anywhere in the FM band (87-108MHz) and transmission can […]
Angler Bite Booster Circuit
Angler Bite Booster Circuit using HEP 230 There is no other series like it for collegiate anglers at this time or ever before.
low pass audio filter circuit
low pass audio filter circuit low pass audio filter circuit Using NE5534, TL074, A1015, B507, A671, C1815, D313, C1061, TL072, LF347N low pass audio filter circuit low pass audio filter circuit
STK078 circuit power Compo audio
STK078 circuit power Compo audio
