I'm going to start off by saying that I am way out of my depth on this forum. I have no experience designing or building components from scratch. I do have enough practice soldering that I've been able to do a few DIY projects from kits. (made my own theremin back in the day, added a voltage regulating circuit to a little tube guitar amp, things like that.)
I've been reading about class D and class T amps and I'd like to try to put together a little amp to power a pair of unused speakers to use in my garage workshop or maybe to replace the cheapo speakers I have hooked up to my computer. I like to do it on the cheap.
I have a 19V 3.4A power supply that I picked up for free.
I'm thinking I'll use something like this :
The last piece of the puzzle is which board to get. I could potentially assemble it myself if there is a good kit, but I'd prefer to just get a preassembled board to wire up. I'd like for it to include a volume control.
I was thinking of boards based on TPA 3116, 3118, 3123 etc, but I just don't feel like I have enough knowledge 1)to choose the appropriate chip and 2) to choose a board that is made with parts of at least passable quality. I want cheap, but I don't want absolute junk. That said, if there's something that is very cheap and just needs to have a couple things added or swapped to make it better/more reliable, it's certainly within my ability level to make a couple little changes (if someone can instruct me what the appropriate changes might be.)
I appreciate any suggestions. Thanks!
I've been reading about class D and class T amps and I'd like to try to put together a little amp to power a pair of unused speakers to use in my garage workshop or maybe to replace the cheapo speakers I have hooked up to my computer. I like to do it on the cheap.
I have a 19V 3.4A power supply that I picked up for free.
I'm thinking I'll use something like this :
An externally hosted image should be here but it was not working when we last tested it.
for a case. I throw away half a dozen of them at work each week. The last piece of the puzzle is which board to get. I could potentially assemble it myself if there is a good kit, but I'd prefer to just get a preassembled board to wire up. I'd like for it to include a volume control.
I was thinking of boards based on TPA 3116, 3118, 3123 etc, but I just don't feel like I have enough knowledge 1)to choose the appropriate chip and 2) to choose a board that is made with parts of at least passable quality. I want cheap, but I don't want absolute junk. That said, if there's something that is very cheap and just needs to have a couple things added or swapped to make it better/more reliable, it's certainly within my ability level to make a couple little changes (if someone can instruct me what the appropriate changes might be.)
I appreciate any suggestions. Thanks!
Is there anything horrible about this one? TPA3123 D Class Hi Fi Mini Digital Amplifier Board 25WX2 DC 10 25V Amp Board | eBay
It sure is cheap... Does the volume control have an "off" position?
It sure is cheap... Does the volume control have an "off" position?
Finished my first thingy. Happy with it! Sounds fine.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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