Elektor Team (9517)

1-07-1981 | 7-50 — eiektor july/august 1981 is Or variable 2V. . 60V power supP1Y The L146 type integratedcircuit from SGS-Ates is pin compatible with...

1-07-1981 | • r long-pertod time This monostable multivibrator can be seen as a long-period alternative for timer circuits which incorporate the well-...

1-07-1981 | 7-52 54 novel clock control In certain applications it is often necessary to gener- ate a series of clock pulses by using switches etc. For...

1-07-1981 | 55 novel flashing light As you may have already guessed, this circuit ess than a method of illumi- By altering the pin numbering a totally "...

1-07-1981 | 7-54 — elektor july/august 1981 "1rli-fi" siren The title "siren" above a circuit diagram usually implies a circuit for a two-tone or mult...

1-07-1981 | P. De Bra low-noise microphone pre-amplifier -amp recording the roar of a lion. No single pre can guarantee a linear amplification of that k...

1-07-1981 | 58 extended range milli-voltmeter A multimeter, as the name implies, is a multi- purpose measuring tool, although it has its limits. For exa...

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1-07-1981 | temperature alarm This design allows a simultaneous check of a maxi- mum of four temperatures. The individual detectors are connected to the...

1-07-1981 | voltage regulators in parallel The well known 78xx series of voltage regulators are designed to produce currents up to 1 amp. In many instan...