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Crystal quartz oscillator circuit
2016-08-21 02:25:3271Another great quartz crystal oscillator schematic with bb139, a 2-nd harmonic quartz crystal and one BF214 transistor. So, the Q quartz is half of the ...
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XOR_GATE_OSCILLATOR
2016-08-21 02:18:3766An exclusive-OR gate, IC1D, turns a simple CMOS oscillator into an FSK generator. When the data input increases, IC1D inverts, and negative feedback th...
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The crystal oscillator circuit with frequency in 2MHz
2016-08-21 01:56:0065Figure (a) and (b) show the two 2MHZ basic oscillator circuits. According to the circuit structure, it can adjust its best operating point by testing....
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32768Hz crystal oscillator circuit
2016-08-21 01:22:4774It consists of an integrated circuit CD4060, a crystal with resonant frequency of 30720Hz and other components. CD4060 is a 14-bit binary serial counte...
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Keying Oscillator Circuit
2016-08-21 00:28:2163As seen in the figure is keying oscillator circuit composed of monostable trigger CC4098, Four-2 input terminal and NOT gate CC4011. This circuit has a...
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ISOLATED_INTEGRATOR_IN_100_CPS_PHASESHIFT_OSCILLATOR
2016-08-21 00:18:0661Frequency can be adjusted over limited range with 500-ohm rheostat, which can easily be replaced with photocell or other resistive transducer to give f...
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2_23_MHz_UNTUNED_OSCILLATOR
2016-08-20 23:46:2166Two dualgate MOSFETs operate in untuned Colpitts crystal oscillator Used in SSB transceiver made by Sideband Associates for radiomarine communication i...
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Adjustable Rate Constant Sinusoidal Frequency Oscillator Cir
2016-08-20 22:39:0963Adjustable Rate Constant Sinusoidal Frequency Oscillator Circuit is showed in the picture above....
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Code Practice Oscillator Key
2016-08-20 22:18:0065Code Practice Oscillator Key Circuit PARTS LIST R1 10kΩ R2 100Ω R3 100Ω R4 18kΩ R5 180kΩ C1 0.047μF C2 0.047μF C3 0.0022μF Q1 2N4871 Q2 BC109 S...
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Variable Frequency And Duty Cycle Oscillator CIRCUIT (1N4009
2016-08-20 20:36:41114This article describes the Variable Frequency And Duty Cycle Oscillator CIRCUIT (1N4009). The content is very simple, very helpful. Components in this ...
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Construct Square Wave Oscillator using CMOS Logic Element
2016-08-20 20:16:4871The following information within contain application note which describe you with severalsquare wave oscillatorsthat can be built using CMOS logic elem...
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12kHz IF oscillator
2016-08-20 20:07:3083The 12kHz oscillator shown as the chart is composed of 12kHz crystal oscillator, output level adjustment circuit, level rising circuit and the alarm ci...
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Pulse button control annular oscillator circuit
2016-08-20 19:42:5864The pulse button control annular oscillator circuit is composed of the NAND gate. If the input Vi is the high level, the oscillator will start oscillat...
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The Terman oscillator circuit
2016-08-20 17:17:0571J-FET is connected between the resistors R3 and R4 in the Wien bridge, and it uses transistor to replace operational amplifier , this circuit is called...
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RC_OSCILLATOR
2016-08-20 16:57:3972A single gate of a 4584 chip is connected in a simple RC square-wave audio-oscillator circuit. C1, R1, and R2 set the oscillator's frequency. The frequ...
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AVR internal oscillator jitter research
2016-08-20 16:22:5867If you go to AVR site and open an AVR application note AVR053 you will notice that there are different RC oscillators installed in to AVR chips during ...
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BLOCKING_OSCILLATOR_MODULATOR
2016-08-20 15:50:4464High permeability of ferrite-core transformer allows use of few coil turns, keeping capacitance at minimum so narrow pulses are produced.-C. D. Hardin ...
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VERY_LOW_DISTORTION_OSCILLATOR
2016-08-20 14:03:3266his oscillator uses a bridge circuit with an optoisolator as a gain-control device. The resultant distor-tion can be held to 9 ppm (.0009%) with proper...
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Big loop oscillator
2016-08-20 12:04:2663L1 is a loop of 10 to 20 turns of insulated wire with a diameter anywhere between 4` to 4'. Oscillator frequency (7 to 30 MHz) shifts substantially whe...
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ORYSTAL_OSCILLATOR_WITH_FM_CAPABILITY
2016-08-20 11:46:0964This crystal oscillator produces a good FM signal that can be tripled to 146 MHz and produces a clean 5-kHz deviation signal for FM voice. The bias con...
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ENCODER_OSCILLATOR
2016-08-20 11:12:5464Used to trigger 24 elapsed-time counters until end of storage period, for storing and reading out elapsed time between consecutive but randomly occurri...
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How to build Reverse Bias Oscillator
2016-08-20 10:28:5064Circuit diagram There are a number of npn transistors that will oscillate in the audio range when reverse biased. Minimum supply voltage is 7V for low ...
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POINT-CONTACT OSCILLATORS
2016-08-20 10:21:5165The principle of operation of a car hooter has been applied to both a ceramic sounder and a loudspeaker. A break in the supply current is caused by the...
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Norton_sine_wave_oscillator
2016-08-20 10:20:0463This circuit uses four sections of an LM3900 to form a sine-wave oscillator. One section is used as a gain-controlled amplifier (to sustain feedback), ...
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TIMER_AS_OSCILLATOR
2016-08-20 10:10:2964Output of National LM122 timerisfed back to trigger input through capacitor to give self-starting oscillator. Frequency is 1/RtCt. Output is narrow neg...
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Low_distortion_sine_wave_oscillator_1
2016-08-20 09:31:2673This circuit provides sine-wave outputs at frequencies shown in Fig.5-14B with low distortion (between 0.2% and 0.4% for 20% clipping, as set by R2).Th...
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Fifth-overtone oscillator
2016-08-20 08:13:1666This circuit isolates the crystal from the dc base supply with an rf choke for better starting characteristics. Reprinted Url Of This Article: http://w...
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IC 4049 Square wave oscillator generator CIRCUIT (CD4049)
2016-08-20 06:40:58500This article describes the IC 4049 Square wave oscillator generator CIRCUIT (CD4049). The content is very simple, very helpful. Components in this arti...
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Transformer feedback oscillator circuit
2016-08-20 06:31:5669The easiest way to introduce positive feedback is to use transformer feedback method, just as shown in the figure. Replace the input voltage of the fee...
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Local Oscillator For Double Balanced Mixers Circuit
2016-08-20 05:17:1866This circuit has an amplifier to supply 10 dBm to an SBL series (Mini-circuits) or similar type doubly-balanced mixer assembly. This circuit has values...
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