| A negative supply voltage may be obtained easily with the use of a special inverter IC. Such ICs are not always readily available, howeve...
More about Chip (137)
| A tester for MIDI connections is a real asset for many constructors. The one presented here is kept fairly simple as shown in the diagram...
| HARRIS's Type HV-240SE IC, connected with a few external components as shown in the diagram, enables the direct derivation of a regulated...
| Motorola's TCA5600 is a versatile supply chip for battery-operated microprocessors: its internal circuit diagram is given in this articl...
| Siemens Type 5AB0529 IC may be programmed for periods from 1 second to 31 hours 30 minutes. lt may be used for switching staircase lights...
| Intel's 8031 embedded controller chip contains all the essential ingredients of a microcomputer - 1/0 ports, a UART, interrupt lines, 1...
| When it is necessary, or desired, to count the number of days to a particular event or date, the circuit here, which can count up to 99,...
| The TDA1522 from Philips Components is a preamplifier chip for tape and cassette recorders. The circuit presented here is remarkable for...
| The "Computer-controlled slide fader" we published in 1988 (Ref. 1) was based on dimmer chip Type TCA280A. In spite of this device being...
| Cl D1 10n 15n 22n (loon R2 LSLK en 01...03 = 1N4148 BC547 T2 N1...N4 = ICI = 4093 R8 "Cl C8 0W5 R3 R4 00 135 057 SINGLE-CHIP MELODY GENERATO...