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Audio / Music (15)

1) Electret Microphone Preamplifier ( 04/06/2010 | v:37848 )

2) 10 Band Audio Equalizer ( 16/04/2007 | v:22288 )

3) Audio Distribution Amplifier ( 16/04/2007 | v:19061 )

4) Simple Intercom ( 16/04/2007 | v:18897 )

5) Surround Sound Decoder ( 16/04/2007 | v:15196 )

6) Stereo Tone Control ( 16/04/2007 | v:12836 )

7) Speaker Microphone ( 16/04/2007 | v:12540 )

8) 10W Audio Power Amplifier ( 16/04/2007 | v:11685 )

9) 22W Stereo Amplifier ( 16/04/2007 | v:10947 )

10) Baxendall Tone Control ( 16/04/2007 | v:10850 )

11) 20W Power Amplifier ( 16/04/2007 | v:10356 )

12) Classic Audio Mixer ( 16/04/2007 | v:10011 )

13) 1W Bass Power Amplifier ( 16/04/2007 | v:9791 )

14) Digital Double Volume Control ( 01/06/2010 | v:9647 )

15) 250 mW Audio Amplifier ( 16/04/2007 | v:8025 )

Charger / Inverter (2)

1) 12V Power Inverter ( 01/06/2010 | v:23448 )

2) Ni-Cd Battery Auto Charger ( 16/04/2007 | v:19765 )

Measurement (8)

1) Digital Voltmeter ( 16/04/2007 | v:28730 )

2) 12V Lead-Acid Battery Monitor ( 16/04/2007 | v:26191 )

3) LED RF Signal Strength Meter ( 01/06/2007 | v:16658 )

4) Frequency Comparator ( 16/04/2007 | v:15947 )

5) 1GHz Simple Frequency Counter ( 16/04/2007 | v:14805 )

6) Car Water Temperature ( 16/04/2007 | v:14296 )

7) XTal Tester ( 16/04/2007 | v:9367 )

8) Electronic Metronome ( 16/04/2007 | v:8401 )

PC related (2)

1) USB to RS-232 Convertor ( 06/02/2011 | v:11978 )

2) LCD Module Control with PC ( 16/04/2007 | v:11865 )

Power Supply (3)

1) 12V to 6V Convertor ( 16/04/2007 | v:23787 )

2) 0-35V / 0-3A Regulated Power Supply ( 06/02/2011 | v:9612 )

3) 2W Switching Power Supply ( 16/04/2007 | v:7936 )

Radio Frequency (15)

1) 15dB UHF TV Antenna Booster ( 16/04/2007 | v:60253 )

2) VHF Video Transmitter ( 16/04/2007 | v:47907 )

3) VHF Audio Video Transmitter ( 16/04/2007 | v:47506 )

4) Simple FM Transmitter ( 16/04/2007 | v:21754 )

5) 1Km range FM Transmitter ( 06/02/2011 | v:20646 )

6) Coil-less FM Transmitter ( 16/04/2007 | v:18685 )

7) Video to RF Modulator ( 16/04/2007 | v:15385 )

8) 21dB UHF TV Antenna Booster ( 13/01/2011 | v:14861 )

9) Analog Satellite Receiver ( 06/02/2011 | v:13520 )

10) 1 Watt C-Class RF Amplifier ( 16/04/2007 | v:11900 )

11) 27MHz Super Heterodyne Receiver ( 06/02/2011 | v:10204 )

12) FM Stereo Decoder ( 06/02/2011 | v:8949 )

13) Low Distortion Crystal Oscillator ( 16/04/2007 | v:8487 )

14) 1100Mhz Divider by 64 ( 16/04/2007 | v:7952 )

15) VXO: Twin Crystal with Buffer ( 26/05/2007 | v:5578 )

Security (4)

1) Infrared Alarm ( 16/04/2007 | v:24582 )

2) Proximity Alarm ( 16/04/2007 | v:14696 )

3) Combination Lock ( 16/04/2007 | v:12656 )

4) Auto Burglar Alarm ( 06/02/2011 | v:8314 )

Telephony (3)

1) Electronics Telephone Talking Circuit ( 16/04/2007 | v:14168 )

2) Telephone Controlled Night Light ( 06/02/2011 | v:7783 )

3) Simple DTMF Decoder ( 06/02/2011 | v:7618 )

u-Controller (1)

1) Servo Motor Control with PIC16F84 ( 16/04/2007 | v:20125 )

Video (1)

1) Video Distributor Amplifier ( 16/04/2007 | v:20281 )

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