| We recently came across an interesting lC which makes digital recording and playback of short messages and other sounds easier than w...
H. Bonekamp (119)
| These days when electronic circuits can be found almost anywhere, there is, some people fear, a different kind of environmental poll...
| There has always been doubt about the claims that dry alkaline manganese batteries could be revived by charging, especially since manu...
| The a.c. millivolt ranges of many inexpensive multimeters have a limited bandwidth, usually only about 1 kHz. The present circuit contai...
| This circuit converts a serial pulse train into a sinusoidal output voltage consisting of 30 discrete steps. The 4-bit output of up/down...
| The generator produces a sinusoidal signal ar a frequency of about 1 kHz. This makes it suitable Ior use in a variety of measurements, s...
| Nowadays, the design of many oscillators is based on a couple of logic gates and a crysial. Unfortunately, these oscillators are very no...
| The present circuit combines simplicity and linearity: it is highly suitable for use as an A-D converter (ADe) far a microprocessor. It...
| The peak-ro-peak noise of rnany voltage references is specified by the makers for a bandwidth of 0.1-10 Hz. However, when the reference...
| The tracer is intended for detecting spurious electro-magnetic Interference (EMI), particularly at frequencies above 30MHz.