|Chip Amps Amplifiers based on integrated circuits|
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|19th February 2015, 07:18 PM||#1|
Join Date: Feb 2014
DIY Amp la 4440 based
I am new to Diyaudio.com and I have seen other members showing their DIY stuff, so today I also have some thing to show to you guys.Its my LA 4440 ic based amplifier build. Please note that the amplifier board was not built by me, I purchased it from Lajpat rai market , NewDelhi. It costed me Rs.120 for dual IC configuration., i.e. the amp board has two 4440 Ics , each being in bridged/mono mode giving output of 19 WRms each. I cound not find a suitable box at home for the build so used my old Dell optiplex gx 150 cpu cabinet. I must say, this is one strong built pc cabinet.Below are the snapshots of the build. I tried to keep it as clean as possible.
The parts I used/purchased for the build are:
(2x4440) IC board-Rs. 120
0-12(240 v to 12 v) 3 Amps transformer-85 Rs.
3X potentiometers (50k) - 45 Rs.
Some cables and heat shrink tubing-50 Rs.
Power switch (240 v 4 amps)- Rs. 10
Speaker cable connector-Rs. 10
RCA input connetors 2X-20 Rs.
Total Time spent except purchasing- 5 hours
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