Circuits Archive::FREE Schematics, FM Transmitter, Receiver, TV Booster, Audio Amplifier

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Circuits Archive

Audio / Music (15)

1) 10 Band Audio Equalizer ( 16/04/2007 | v:11530 )

2) Electret Microphone Pre-Amplifier ( 16/04/2007 | v:11168 )

3) Simple Intercom ( 16/04/2007 | v:9917 )

4) Audio Distribution Amplifier ( 16/04/2007 | v:8684 )

5) Surround Sound Decoder ( 16/04/2007 | v:7450 )

6) 22W Stereo Amplifier ( 16/04/2007 | v:7346 )

7) Stereo Tone Control ( 16/04/2007 | v:7047 )

8) Speaker Microphone ( 16/04/2007 | v:7008 )

9) 20W Power Amplifier ( 16/04/2007 | v:6687 )

10) Baxendall Tone Control ( 16/04/2007 | v:6650 )

11) 10W Audio Power Amplifier ( 16/04/2007 | v:6453 )

12) Digital Double Volume Control (* 16/04/2007 | v:6371 )

13) Classic Audio Mixer ( 16/04/2007 | v:6196 )

14) 1W Bass Power Amplifier ( 16/04/2007 | v:6127 )

15) 250 mW Audio Amplifier ( 16/04/2007 | v:5515 )

Charger / Inverter (2)

1) 12V Inverter ( 16/04/2007 | v:11870 )

2) Ni-Cd Battery Auto Charger ( 16/04/2007 | v:11452 )

Measurement (8)

1) Digital Voltmeter ( 16/04/2007 | v:11342 )

2) 12V Lead-Acid Battery Monitor ( 16/04/2007 | v:9633 )

3) Frequency Comparator ( 16/04/2007 | v:8403 )

4) 1GHz Simple Frequency Counter ( 16/04/2007 | v:8307 )

5) Car Water Temperature ( 16/04/2007 | v:7845 )

6) LED RF Signal Strength Meter ( 01/06/2007 | v:6623 )

7) XTal Tester ( 16/04/2007 | v:5988 )

8) Electronic Metronome ( 16/04/2007 | v:5672 )

PC related (2)

1) USB to RS-232 Convertor (* 16/04/2007 | v:7626 )

2) LCD Module Control with PC ( 16/04/2007 | v:6672 )

Power Supply (3)

1) 12V to 6V Convertor ( 16/04/2007 | v:9052 )

2) 0-35V / 0-3A Regulated Power Supply (* 29/09/2007 | v:5531 )

3) 2W Switching Power Supply ( 16/04/2007 | v:4962 )

Radio Frequency (15)

1) 15dB UHF TV Antenna Booster ( 16/04/2007 | v:29044 )

2) VHF Video Transmitter ( 16/04/2007 | v:26094 )

3) VHF Audio Video Transmitter ( 16/04/2007 | v:23497 )

4) 1Km range FM Transmitter (* 16/04/2007 | v:12792 )

5) Coil-less FM Transmitter ( 16/04/2007 | v:11598 )

6) Simple FM Transmitter ( 16/04/2007 | v:10792 )

7) 21dB UHF TV Antenna Booster (* 16/04/2007 | v:9397 )

8) Video to RF Modulator ( 16/04/2007 | v:8967 )

9) Analog Satellite Receiver (* 16/04/2007 | v:8729 )

10) 1 Watt C-Class RF Amplifier ( 16/04/2007 | v:7242 )

11) 27MHz Super Heterodyne Receiver (* 16/04/2007 | v:6519 )

12) FM Stereo Decoder (* 16/04/2007 | v:6418 )

13) 1100Mhz Divider by 64 ( 16/04/2007 | v:5849 )

14) Low Distortion Crystal Oscillator ( 16/04/2007 | v:5801 )

15) VXO: Twin Crystal with Buffer ( 26/05/2007 | v:2068 )

Security (4)

1) Infrared Alarm ( 16/04/2007 | v:14116 )

2) Proximity Alarm ( 16/04/2007 | v:9858 )

3) Combination Lock ( 16/04/2007 | v:7821 )

4) Auto Burglar Alarm (* 16/04/2007 | v:5902 )

Telephony (3)

1) Electronics Telephone Talking Circuit ( 16/04/2007 | v:8643 )

2) Telephone Controlled Night Light (* 16/04/2007 | v:5392 )

3) Simple DTMF Decoder (* 16/04/2007 | v:5269 )

u-Controller (1)

1) Servo Motor Control with PIC16F84 ( 16/04/2007 | v:7675 )

Video (1)

1) Video Distributor Amplifier ( 16/04/2007 | v:11520 )

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