Elektor Team (9538)

1-07-1983 | 93 simpte PA system A very nice power amplifier deliver- ing 10 W into 2 Sl (two 4 S2 loud- speakers in parallel) can be built using the TDA...

1-07-1983 | elektor july/august 1983 94 1~ C. Bajeux 5 V logic tester The full title for the description of this circuit should be "3 state 5 V logic te...

1-07-1983 | 95 microphone amplifier with preset tone control The active parts of the circuit (ampli- fiers Al and A2) shown in figure 1 are contained in...

1-07-1983 | elektor july/august 1983 NI~ current source for photodiodes There are many circuits available today which use modulated light signals to tra...

1-07-1983 | 97 faultfinder for ASCII keyboard To be able to check the connections to an unknown ASCII keyboard, you want to know first of all where the...

1-07-1983 | ~Y3 }Processor fault finder When fault finding in a micro- processor system it is not always possible to work in single-step mode, as the pr...

1-07-1983 | elektor july/august 1983 thermal indicator for heat-sinks The temperature of a heat-sink can be measured with a wet finger: if it sizzles, t...

1-06-1983 | energy meter elektor june 1983 energy meter from watt to ki lowatt-hou r meter Energy costs money and these costs are rising in line with th...

1-06-1983 | switching channel for radio control elektor june 1983 switching channel for radio control The proportional radio control systems which are a...

1-06-1983 | RTTY decoder elektor june 1983 RTTY decoder Interest in Radio Teletype (RTTY) traffic has grown appreciably over the past few years. One of...