Circuit Wiring Solution: based

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Sunday, September 7, 2014

Simple Surround audio amplifier circuit based on the IC TDA7053

Perhaps the surround amplifier circuit below is an interesting circuit is made. For, making easy just by using the IC and electrolytic capacitor added 1 , we already can hear the strains of music with sound ( Front Left ,Right and surround Right , Left. In addition to listening to music , this amplifier is also very suitable for gamers who want good sound quality.

Minimum voltage requred 9 volts and maximum of 15 volts. Power Output of each speaker 10 Watt with 4 ohm impedance.

Tuesday, August 19, 2014

Stereo to Mono Converter Based on FET

This simple schema mixes two or more channels into one channel (e.g. stereo into mono). The schema can mix as many or as few channels as you like and consume very little power. The mixer is shown with two inputs, but you can add as many as you want by just duplicating the "input sections" which are clearly visible on the schematic.

Parts:

P1 = 10K-50K Pot
P2 = 10K-50K Pot
R1 = 100K
R2 = 100K
R3 = 6.8K
C1 = 0.1uF-25V
C2 = 0.1uF-25V
C3 = 0.1uF-25V
Q1 = 2N3819 Junction FET
J1 = Audio input sockets
J2 = Audio input sockets

Notes:

* As many or as few channels as are required can be added to the mixer.
* Do this by just duplicating the input "sections" which are clearly shown on the schematic.
* One version of this mixer I saw had 18 inputs!
* A shielded case is probably needed to reduce hum and help stop oscillations.
* P1 and P2 are dual gang potentiometer for stereo version.
* The schema can be powered by a single 9 volt battery.