Elektor Team (9517)

1-07-1984 | a small, but useful, TTL test aid Regular readers of Elektor will know that we often publish various items of test gear. The design shown he...

1-07-1984 | scales from 0 to 999 An amplification selector is an ac- curate measuring instrument that is inserted into a signal path and then allows the...

1-07-1984 | for unhampered listening pleasure This circuit is the receiver to match the transmitter published elsewhere in this issue. Together these tw...

1-07-1984 | for asymmetrical signals It is quite a common practice to use a schmitt trigger to generate a rec- tangular waveform from some other signal....

1-07-1984 | .for power amplifiers There is no doubt about the value of a switch-on delay for a power amplifier. We all know the irritating (and potentia...

1-07-1984 | The MOC 5010 opto-coupler may be used to isolate a circuit from the mains, as audio interface, in medical electronics, and in many other app...

1-07-1984 | see the phone ringing In many instances it is not only the hard of hearing who are unable to hear the telephone ringing: even with normal he...

1-07-1984 | july/august 1984 with radiation counter All that"s required to erase an EPROM is basically an ultraviolet (UV) lamp which radiates the EPROM...

1-07-1984 | 10 REM PROGRAM TO CALCULATE PARALLEL AND SERIAL RESISTORS 20 DATA 1.1.2,1.5,1.8,2.2,2.7.3.3,3.9,4.7,5.6,6.8,8.2 30 DIM R(12):FOR A=1 TO 12:R...

1-07-1984 | for low voltage circuits This circuit, as the name suggests, indicates when a fuse has blown. As long as the fuse is good the LED lights con...