More about ultrasonic (75)

1-10-1982 | 10-24 — elektor october 1982 ultrasonic distance meter Measuring distances is not difficult, especially when the right equipment is availa...

1-07-1981 | Nom two unused inverters inside the 4069 package) to CMOS ultrasonic receiver Remote control of all sorts of equipment is be- coming more an...

1-10-1980 | 10-24 — elektor october 1980 remote control slide projector remote control slide projee ultrasonic projector control The following equatio...

1-07-1980 | 7-04 elektor july/august 1980 r - • see text L R3 R12 15V 811 P2 0 _15V R2 Remember the old-fashioned copper bell-on-a-chain? In many ways...

1-06-1980 | 6-18 — elektor june 1980 timbug II Rather like a bat, the bug transmits a "radar beam" of ultrasonic sound which will be reflected by any...