Circuit Diagram

Simple Field Strength Indicator

Published:2013/1/16 2:14:00 Author:muriel | Keyword: Simple, Field Strength, Indicator

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The Power Supply

Published:2013/1/16 2:13:00 Author:muriel | Keyword: Power Supply

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the first amplfier

Published:2013/1/16 2:12:00 Author:muriel | Keyword: amplfier

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The amplifier board

Published:2013/1/16 2:12:00 Author:muriel | Keyword: amplifier board

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RF detector

Published:2013/1/16 2:11:00 Author:muriel | Keyword: RF detector

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Field Strength Meter Using A Biased Schottky Detector

Published:2013/1/16 2:11:00 Author:muriel | Keyword: Field Strength Meter, Biased Schottky Detector

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Precision Audio Frequency Peak Detecting Probe

Published:2013/1/16 2:10:00 Author:muriel | Keyword: Precision Audio Frequency, Peak Detecting Probe

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frequency divider

Published:2013/1/16 2:09:00 Author:muriel | Keyword: frequency divider

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Power supply and Reference Signal

Published:2013/1/16 2:09:00 Author:muriel | Keyword: Power supply , Reference, Signal

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Output Amplifier

Published:2013/1/16 2:08:00 Author:muriel | Keyword: Output Amplifier

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P-P Detector and Voltage Follower

Published:2013/1/16 2:08:00 Author:muriel | Keyword: P-P Detector, Voltage Follower

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Input coupling and Preamp

Published:2013/1/16 2:07:00 Author:muriel | Keyword: Input coupling , Preamp

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HF AC Millivoltmeter Adapter

Published:2013/1/16 2:07:00 Author:muriel | Keyword: HF , AC, Millivoltmeter, Adapter

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PWM with 555

Published:2013/1/16 1:49:00 Author:muriel | Keyword: PWM , 555

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Dual Led Flasher

Published:2013/1/16 1:48:00 Author:muriel | Keyword: Dual Led Flasher

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Timer with 555

Published:2013/1/16 1:47:00 Author:muriel | Keyword: Timer, 555

This circuit can be used to activate a relay for two or three minutes. Pressing the switch the relay will be activated. Changing the 1M resistor with a variable resistor you can vary the time. The 0.01 capacitor is important because it prevents any false triggering. The circuit will work OK with 6 Volts without any modification. If you want to use 9 or 12 Volts, you need to change the relay with a 9V or 12V relay. Using this circuit with 120 VAC is not recommended, however, using the right parts and the right isolation, will be not a problem. The aplications for this circuit may vary, for example: Bouce-free switch, A three-minutes light to walk thru a dark area, A timer-activated faucet to save water, etc. Any project that needs only a few minutes of power will be perfect for this circuit. Ever if you have an old microwave with the broken electronic control, you can replace it with this timer (using the right hi-current relay).   (View)

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LM6172 voltage feedback amplifier and its pin main characteristics

Published:2013/1/16 1:14:00 Author:Ecco | Keyword: voltage feedback amplifier , pin main characteristics

Operating voltage range is ± 5.0 to ± 15V; unity gain bandwidth is 110MHz; conversion rate is 3000V/μs; supply current is 4.6mA; Output Current is 50mA / channel; Input Offset Voltage is 0.4mA; input bias current is 1.2μA; common-mode input resistance is 40MΩ; differential input resistance is 4.9MΩ; PSRR = 95dB ; CMRR = 110dB.   (View)

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LM6181 current feedback amplifier and its pin main characteristics

Published:2013/1/16 1:32:00 Author:Ecco | Keyword: current feedback amplifier , pin main characteristics

Operating voltage range is ± 5.0 ~ ± 15V or 7 ~~ 32V; output voltage is ± 10V; conversion rate is 2000mV/μs; input offset voltage is 2mV; reversed input bias current is 2μA; input in-phase bias current is 0.5μA; Output Current is 130mA; power current is 7.5mA; PSRR = 80dB; CMRR = 60dB; it can replace EL2020, OP160, AD844, LT1223 and HA5004.   (View)

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MA337 JFET input op amp and its pin main characteristics

Published:2013/1/16 1:35:00 Author:Ecco | Keyword: JFET input, op amp , pin main characteristics

The input offset voltage is 100μV; noise is 8nV / √ ¯ Hz ( 1kHz); conversion rate is 15V/μs; power supply is ± 36V; differential-mode input voltage is ± 36V, the power consumption is 500mW.   (View)

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MC13060 power amplifier and its pin main characteristics

Published:2013/1/16 1:01:00 Author:Ecco | Keyword: power amplifier , pin main characteristics

The operating voltage range is 6.0 ~ 35V, and the output audio power is 2.0W, and there is no relationship between output and power supply voltage.   (View)

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