More about oscillator (542)

1-04-1994 | This is an RS232 extension card for the Universal I/O Interface for IBM PCs.The circuit is based on the COM81C17 UART (universal asynchro...

1-12-1993 | The transmitter is intended primarilyy for use with the receiver in the preceding article. lt works from two small 1.5 V dry batteries or...

1-07-1993 | The tester has no operating controls and draws current only when the loudspeaker sounds.

1-07-1993 | A simple unit for testing an audio, TTL or CMOS circuit is always useful. Here, an oscillator, based on IC(1a), generates a frequency tha...

1-07-1993 | The circuit consists essentially of two distinct parts. A rectangular-wave oscillator, based on lC1, generates two signals which may be ph...

1-12-1992 | Nowadays, with the advent of SMD (surface mountdesign), it is possible to construct tiny circuits. In the case of crystal oscillators th...

1-12-1992 | Modern TV tuners normally contain means to scale down the VCO [voltage-controlled oscillator) signal. The one used in the proposed synthe...

1-12-1992 | This little circuit converts temperature measured by an NTC (negative temperature co-efflcient) resistor inta a digital signal. The resis...

1-11-1992 | A printer is an essential peripheral device for nearly every one using a pe. However, since a printer will rarely be used all the time, it...

1-07-1992 | A 600 Hz signal at a level of 2.4 Vpp generated by the oscillator on board an LM1830 (NationalSemiconductor) is applied to a probe via C2....