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Circuits Archive
Audio / Music (15)
1) 10 Band Audio Equalizer
( 16/04/2007 | v:7373 )
2) Simple Intercom
( 16/04/2007 | v:6686 )
3) Electret Microphone Pre-Amplifier
( 16/04/2007 | v:6460 )
4) Audio Distribution Amplifier
( 16/04/2007 | v:5516 )
5) 22W Stereo Amplifier
( 16/04/2007 | v:5326 )
6) Speaker Microphone
( 16/04/2007 | v:5063 )
7) Surround Sound Decoder
( 16/04/2007 | v:5041 )
8) Digital Double Volume Control
(
*
16/04/2007 | v:4839 )
9) Stereo Tone Control
( 16/04/2007 | v:4822 )
10) 20W Power Amplifier
( 16/04/2007 | v:4806 )
11) Baxendall Tone Control
( 16/04/2007 | v:4708 )
12) 10W Audio Power Amplifier
( 16/04/2007 | v:4705 )
13) Classic Audio Mixer
( 16/04/2007 | v:4608 )
14) 1W Bass Power Amplifier
( 16/04/2007 | v:4607 )
15) 250 mW Audio Amplifier
( 16/04/2007 | v:4270 )
Charger / Inverter (2)
1) Ni-Cd Battery Auto Charger
( 16/04/2007 | v:6888 )
2) 12V Inverter
( 16/04/2007 | v:6788 )
Measurement (8)
1) Digital Voltmeter
( 16/04/2007 | v:6928 )
2) 12V Lead-Acid Battery Monitor
( 16/04/2007 | v:5872 )
3) 1GHz Simple Frequency Counter
( 16/04/2007 | v:5819 )
4) Frequency Comparator
( 16/04/2007 | v:5779 )
5) Car Water Temperature
( 16/04/2007 | v:5180 )
6) XTal Tester
( 16/04/2007 | v:4429 )
7) Electronic Metronome
( 16/04/2007 | v:4389 )
8) LED RF Signal Strength Meter
( 01/06/2007 | v:3569 )
PC related (2)
1) USB to RS-232 Convertor
(
*
16/04/2007 | v:4893 )
2) LCD Module Control with PC
( 16/04/2007 | v:3991 )
Power Supply (2)
1) 12V to 6V Convertor
( 16/04/2007 | v:5412 )
2) 2W Switching Power Supply
( 16/04/2007 | v:3515 )
3) 0-35V / 0-3A Regulated Power Supply
(
*
29/09/2007 | v:3136 )
Radio Frequency (15)
1) VHF Video Transmitter
( 16/04/2007 | v:16922 )
2) 15dB UHF TV Antenna Booster
( 16/04/2007 | v:16517 )
3) VHF Audio Video Transmitter
( 16/04/2007 | v:15206 )
4) 1Km range FM Transmitter
(
*
16/04/2007 | v:9214 )
5) Coil-less FM Transmitter
( 16/04/2007 | v:8148 )
6) Simple FM Transmitter
( 16/04/2007 | v:7463 )
7) 21dB UHF TV Antenna Booster
(
*
16/04/2007 | v:7093 )
8) Analog Satellite Receiver
(
*
16/04/2007 | v:6734 )
9) Video to RF Modulator
( 16/04/2007 | v:6575 )
10) 1 Watt C-Class RF Amplifier
( 16/04/2007 | v:5753 )
11) 27MHz Super Heterodyne Receiver
(
*
16/04/2007 | v:5421 )
12) FM Stereo Decoder
(
*
16/04/2007 | v:5372 )
13) 1100Mhz Divider by 64
( 16/04/2007 | v:4945 )
14) Low Distortion Crystal Oscillator
( 16/04/2007 | v:4852 )
15) VXO: Twin Crystal with Buffer
( 26/05/2007 | v:1007 )
Security (4)
1) Infrared Alarm
( 16/04/2007 | v:8944 )
2) Proximity Alarm
( 16/04/2007 | v:6284 )
3) Combination Lock
( 16/04/2007 | v:5120 )
4) Auto Burglar Alarm
(
*
16/04/2007 | v:4214 )
Telephony (3)
1) Electronics Telephone Talking Circuit
( 16/04/2007 | v:5539 )
2) Telephone Controlled Night Light
(
*
16/04/2007 | v:3912 )
3) Simple DTMF Decoder
(
*
16/04/2007 | v:3836 )
u-Controller (1)
1) Servo Motor Control with PIC16F84
( 16/04/2007 | v:4022 )
Video (1)
1) Video Distributor Amplifier
( 16/04/2007 | v:7597 )
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