T. Giffard (45)

1-10-1990 | For the many readers who do not need hundreds of watts output from their audio hi-fi installation here is a modest 60-watt a.f. amplifier...

1-09-1990 | Two recently introduced integrated circuits from Plessey, the Types MV500 encoder/transmitter and the MV601 receiver/decoder, allow a ver...

1-09-1990 | This month's project is an all-electronic version of the well-known one-armed bandit found in amusement arcades. Apart from the fun in...

1-09-1990 | The TDA1522 from Philips Components is a preamplifier chip for tape and cassette recorders. The circuit presented here is remarkable for...

1-07-1990 | The Type U450B integrated circuit from Telefunken is a tone sequence generator for applications in toys and electronic household utensils...

1-07-1990 | The design of this meter is in direct response to the intention of most electricity generating boards in Europe of standardizing on a mai...

1-07-1990 | The 50/75 Ω driver is based on a Type OP64, which was designed specifically for use in pulse and video applications. Because of internal...

1-07-1990 | Many people find that when they want to add a CD player to their aud io system, there is no available input left on their power amplifier...

1-07-1990 | This simple design, consisting of a TL071C driver and two MOSFET power amplifiers, can deliver up to 45 W into 8 Ω.

1-07-1990 | Nickel-cadmium battenes should normally be charged at 1/10 their eapacity in Ah. The capacity of a 9 V NiCd battery is usually 110 mAh an...