| The converter, based on a Type CA3080 operational transconductance amplifier (OTA) converts a triangular voltage into a sinusoidal one wi...
More about Amplifier (436)
| The voltage amplifier and current amplifier are housed on separate printed-circuit boards. The current-amplifier board is fitted just abo...
| This circuit has been designed primarily for use with valve amplifiers. When the arnplifier is switched on, filament voltage is supplied...
| The power amplifier presented is a revamped version of the LFA-150 we published in late 1988. It provides rather less power than its popul...
| When the control voltage at the Input of the circuit is varied from 0 V to +12 V, the LED will first light up green and then gradually, via...
| The unit discussed here indicates, by means of achain of LEDs, in logarithmic ratios the strength of an electric field surrounding the un...
| The basic function of a pick-up element is to translate the motion of the stylus into an electrical signal. The most popular cartridges in...
| Although the analogue record player (as it is now olten called) was written off by many some years ago, well-known manufacturers like Thor...
| The Type TEA5591A le from Philips contains virtually all the electronics for an AM/FM tuner: all that needs to be added are a few tuned ci...
| Following the circuit description in our January 1991 issue, we will now focus our attention on the practical construction of the preampl...