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

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Audio / Music (15)

1) Electret Microphone Pre-Amplifier ( 16/04/2007 | v:17005 )

2) 10 Band Audio Equalizer ( 16/04/2007 | v:14755 )

3) Simple Intercom ( 16/04/2007 | v:12736 )

4) Audio Distribution Amplifier ( 16/04/2007 | v:11756 )

5) Surround Sound Decoder ( 16/04/2007 | v:10021 )

6) Stereo Tone Control ( 16/04/2007 | v:9119 )

7) 22W Stereo Amplifier ( 16/04/2007 | v:8585 )

8) Speaker Microphone ( 16/04/2007 | v:8485 )

9) Baxendall Tone Control ( 16/04/2007 | v:8327 )

10) 20W Power Amplifier ( 16/04/2007 | v:7916 )

11) 10W Audio Power Amplifier ( 16/04/2007 | v:7888 )

12) Classic Audio Mixer ( 16/04/2007 | v:7448 )

13) 1W Bass Power Amplifier ( 16/04/2007 | v:7353 )

14) Digital Double Volume Control (* 16/04/2007 | v:7216 )

15) 250 mW Audio Amplifier ( 16/04/2007 | v:6356 )

Charger / Inverter (2)

1) 12V Inverter ( 16/04/2007 | v:15339 )

2) Ni-Cd Battery Auto Charger ( 16/04/2007 | v:14975 )

Measurement (8)

1) Digital Voltmeter ( 16/04/2007 | v:15244 )

2) 12V Lead-Acid Battery Monitor ( 16/04/2007 | v:14283 )

3) Frequency Comparator ( 16/04/2007 | v:10520 )

4) 1GHz Simple Frequency Counter ( 16/04/2007 | v:10497 )

5) Car Water Temperature ( 16/04/2007 | v:10251 )

6) LED RF Signal Strength Meter ( 01/06/2007 | v:9643 )

7) XTal Tester ( 16/04/2007 | v:7114 )

8) Electronic Metronome ( 16/04/2007 | v:6547 )

PC related (2)

1) USB to RS-232 Convertor (* 16/04/2007 | v:9199 )

2) LCD Module Control with PC ( 16/04/2007 | v:8438 )

Power Supply (3)

1) 12V to 6V Convertor ( 16/04/2007 | v:13103 )

2) 0-35V / 0-3A Regulated Power Supply (* 29/09/2007 | v:6829 )

3) 2W Switching Power Supply ( 16/04/2007 | v:5927 )

Radio Frequency (15)

1) 15dB UHF TV Antenna Booster ( 16/04/2007 | v:38891 )

2) VHF Video Transmitter ( 16/04/2007 | v:32947 )

3) VHF Audio Video Transmitter ( 16/04/2007 | v:30122 )

4) 1Km range FM Transmitter (* 16/04/2007 | v:15205 )

5) Coil-less FM Transmitter ( 16/04/2007 | v:14028 )

6) Simple FM Transmitter ( 16/04/2007 | v:13633 )

7) 21dB UHF TV Antenna Booster (* 16/04/2007 | v:10868 )

8) Video to RF Modulator ( 16/04/2007 | v:10753 )

9) Analog Satellite Receiver (* 16/04/2007 | v:10057 )

10) 1 Watt C-Class RF Amplifier ( 16/04/2007 | v:8635 )

11) 27MHz Super Heterodyne Receiver (* 16/04/2007 | v:7228 )

12) FM Stereo Decoder (* 16/04/2007 | v:7086 )

13) Low Distortion Crystal Oscillator ( 16/04/2007 | v:6653 )

14) 1100Mhz Divider by 64 ( 16/04/2007 | v:6573 )

15) VXO: Twin Crystal with Buffer ( 26/05/2007 | v:3140 )

Security (4)

1) Infrared Alarm ( 16/04/2007 | v:17198 )

2) Proximity Alarm ( 16/04/2007 | v:11579 )

3) Combination Lock ( 16/04/2007 | v:9502 )

4) Auto Burglar Alarm (* 16/04/2007 | v:6679 )

Telephony (3)

1) Electronics Telephone Talking Circuit ( 16/04/2007 | v:10642 )

2) Telephone Controlled Night Light (* 16/04/2007 | v:6176 )

3) Simple DTMF Decoder (* 16/04/2007 | v:5941 )

u-Controller (1)

1) Servo Motor Control with PIC16F84 ( 16/04/2007 | v:11218 )

Video (1)

1) Video Distributor Amplifier ( 16/04/2007 | v:14416 )

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