More about oscillator (542)

1-07-1989 | 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...

1-07-1989 | *see text 5x iN4148 062 RADIO & TV Amateur VHF relay stations are normally actuated by a 1750 Hz call tone. This may give problems when the...

1-07-1989 | C Z 70n R2 U D1 02 LT V I 180n •• 470 p H 065 TEST & MEASUREMENT =Ma 560p 6n8 =On C4 5 270n 1I0In LC SINE WAVE GENERATOR R33c1 100nH...1...

1-06-1989 | 24 TEST AND MEASUREMENT 8-DIGIT FREQUENCY METER by T. Giffard A state-of-the-art frequency meter module is presented that has an 8-digit, 7-...

1-03-1989 | 60 EE March 1989 EPROM-CONTROLLED TIME SWITCH by J. Vinckier Time switches can take many shapes. Where apparatus has to be switched on and o...

1-02-1989 | AM/FM VHF RECEIVER This compact, sensitive, communications receiver has a tuning range of 80 to 135 MHz, covering part of the VHF-low band,...

1-02-1989 | 64 EE February 1989 TOUCH-KEY ORGAN A simple-to-build, inexpensive, two-octave organ with touch- sensitive keys etched on the printed circui...

1-07-1988 | 14 EE July/August 1988 CHROMINANCE-LOCKED CLOCK GENERATOR OMNI 0311.111110101110* A remarkably simple solution is offered to a problem almos...

1-07-1988 | EE MICROPROCESSOR-CONTROLLED RADIO SYNTHESIZER 1 The addition of a microprocessor-controlled synthesizer to a continuously-tuned receiver gr...

1-07-1988 | Described is a digital panel meter- DPM-which is built around a special meter-IC, Type ADD3701, and may be used for the accurate measuring o...