| Dynamic Noise Limiting (DNL) is a noise reduction system patented by Philips, which is particularly useful for the reproduction of (cassette...
| Dynamic Noise Limiting (DNL) is a noise reduction system patented by Philips, which is particularly useful for the reproduction of (cassette...
| Generally speaking, resistors with a 5% tolerance are more than adequate for most of the circuits published in Elektor. However from time to...
| An annoying drawback of many liquid level sensors is the effect of electrolytic reaction between the liquid and the sensors. Metal electro-d...
| Before setting off for (hopefully) sunnier climes, many prospective holidaymakers use a UV lamp to acquire an initial tan. Unfortunately, th...
| Although not a precision instrument, this transistor tester should none-theless prove a useful aid for checking the quality of `job lots`...
| Although not a precision instrument, this transistor tester should none-theless prove a useful aid for checking the quality of `job lots`...
| Like the previous circuit, this transis-tor tester will indicate whether the current gain of the transistor under test is that of a class `...
| To many people the radio news bull-etins are of primary interest. This design idea describes a method of switching on a radio by the `pips`...
| Digital voltmeters are now in wide-spread use and growing ever more popular. Many of the cheaper types of DVM however suffer from a slight...
| The circuit described here employs a forward-biased diode as temperature sensor. The forward voltage drop of a diode falls by approximately...