| Long ago, before semiconductors became run-of-the-mill, a small neon lamp and a capacitor were used to generate a sawtooth…
| Long ago, before semiconductors became run-of-the-mill, a small neon lamp and a capacitor were used to generate a sawtooth…
| 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...
| EE JULY/AUGUST 1987 After a longish absence from the semiconductor scene, the tunnel diode, also called Esaki diode, after its Japanese inve...
| The phase-locked loop (PLL) in IC1 is used as a frequency discriminator. The mid-fre- quency of the internal oscillator can be preset by mea...
| for battery-operated equipment The low-power switching regulator type 4193, which is housed in an 8-pin miniature DIL package, is designed s...
| 7-18 elektor july/august 1980 25 This circuit is designed to charge 6 V/3.5 Ah batteries similar to those often used in flash equipment. Of...