| July/august 1984 A video signal + sync separator = sync of a video signal. When supplied signal with a composite video signal of at least 0....
| July/august 1984 A video signal + sync separator = sync of a video signal. When supplied signal with a composite video signal of at least 0....
| for home and garden A periodic alarm signal has many ap- plications in daily day life: "lights off" indicator in cars, water level in- dicat...
| FSK filter for computers A problem well known to personal computer users is the difficulty of swapping cassette tapes containing software. O...
| handy unit for 6502 users The circuit presented here was designed primarily for 6502 users. It indicates which of the following signals occu...
| july/august 1984 overvoltages and short-circuits need no longer be a danger to microcomputers microcomputer power supply protection The 12 V...
| 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...
| 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...
| for unhampered listening pleasure This circuit is the receiver to match the transmitter published elsewhere in this issue. Together these tw...
| for asymmetrical signals It is quite a common practice to use a schmitt trigger to generate a rec- tangular waveform from some other signal....
| .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...