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Chip Amps Amplifiers based on integrated circuits

PC Speaker electronics to amplifier conversion
PC Speaker electronics to amplifier conversion
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Old 3rd April 2016, 11:52 AM   #31
BasicHIFI1 is offline BasicHIFI1  Sri Lanka
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You are part of the solution to our environment . Great stuff.

Started thread.
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Old 26th November 2020, 01:33 AM   #32
BasicHIFI1 is offline BasicHIFI1  Sri Lanka
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Join Date: Jan 2015
Location: Near Colombo
Default Pictures of the amplifier

Running this off batteries seems to result in cleaner sound in the higher frequencies. Batteries run down, need to go to rechargeables. 9V recommended.

Earlier case attempt. Now it is in a cardboard box. Will post pics.
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File Type: png TEA2025Amp.png (274.9 KB, 42 views)
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Old 30th November 2020, 01:25 AM   #33
BasicHIFI1 is offline BasicHIFI1  Sri Lanka
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Default Cardboard Enclosure

The amplifier electronics in a cardboard enclosure. Build the box first.
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File Type: png TEA2025BasedAmp.png (197.2 KB, 20 views)
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Old 30th November 2020, 02:00 AM   #34
BasicHIFI1 is offline BasicHIFI1  Sri Lanka
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Join Date: Jan 2015
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Build the box first. This phase is complete. It runs, it works, producing a clarity of sound I have never experienced before, with bass that is sufficiently solid so I do no miss its depth. With the desktop Open Baffle speakers, this is a huge success, as far as I am concerned. My car system sounds muddy, and the vintage system sounds impressive and capable but lacks the detail. Onward then...
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