Elektor Team (12077)

1.07.1975 | A further application of the LM 3909 circuit is a 1 kHz square-wave oscil- lator. Pl is used for making the square-wave symmetrical. P2...

1.07.1975 | Many amplifier designs, both do-it- yourself efforts and commercial cir- cuits, have the bad habit of delivering a more or less hefty switc...

1.07.1975 | Many amplifier designs, both do-it- yourself efforts and commercial cir- cuits, have the bad habit of delivering a more or less hefty switc...

1.07.1975 | The designer of a heavy-duty, variable- voltage, regulated power supply unit always meets the problem of having to allow for the very hig...

1.07.1975 | The designer of a heavy-duty, variable- voltage, regulated power supply unit always meets the problem of having to allow for the very hig...

1.07.1975 | scematic only

1.07.1975 | scematic only

1.07.1975 | Programmable frequency dividers are particularly useful for producing a large number of frequencies from one reference frequency. An exa...

1.07.1975 | The circuit consists of an `electronic` attenuator, arranged to respond to a fingertip touching one of its contact plates. Transistor Tl...

1.06.1975 | Akustischer Zweitsignalgeber (Mikrofon an CMOS Gatter 4011 schaltet Ausgang)