My lovely UCD400
An externally hosted image should be here but it was not working when we last tested it.
Blew up my Topping TP22 the other day so I ordered a couple of PBTL boards (TPA3116 2*100W D2 Dual Channel Digital Audio Amplifier Board 12V-24V for Arduino | eBay) and popped one in on top of the old board.
TPA3116 x 2 PBTL in a Topping TP22
Managed to keep the use of the on/off and input selector etc so it will fit into the old topping box without any mechanics being required, which was a bit of a result.
So I thought I'd post the picture up.
An externally hosted image should be here but it was not working when we last tested it.
TPA3116 x 2 PBTL in a Topping TP22
Managed to keep the use of the on/off and input selector etc so it will fit into the old topping box without any mechanics being required, which was a bit of a result.
So I thought I'd post the picture up.
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My Extreme amp 😀 I wonder why is everyone using those huge transformers, why not more modern switch mode?
Personal preference, I used the Modern way, works very well for me..
http://www.diyaudio.com/forums/class-d/87913-class-d-amp-photo-gallery-85.html#post3922555
Mark
http://www.diyaudio.com/forums/class-d/87913-class-d-amp-photo-gallery-85.html#post3922555
Mark
Its tda7498 cheapest **** ever. But works.
Ebay laptop bricks modified to give 34 volts and in parallel. That green wire is feedback loop shared.
Ebay laptop bricks modified to give 34 volts and in parallel. That green wire is feedback loop shared.
It looks like the UcDs are just supported by standoffs in the corners and not attached by the heatsink which is just floating. Don't they get rather warm? I've always mounted my UcDs to the chassis or built some heatsinks to help dissipate the heat they generate. Without, they get rather toasty!
2 channel SelfOscillator ClassD PowerAmplifier + SwitchingModePowerSupply 🙂
An externally hosted image should be here but it was not working when we last tested it.
That's about as neat as you can get.
If you like switching technology this must be the target.
This must be a commercial design, who makes it?
If you like switching technology this must be the target.
This must be a commercial design, who makes it?
I heard so much good of those tiny no name class d amps from Alibaba Express, so I decided to give them a try.
I'm totally blown away with the excellent sound produced by this 16 dollar gadget!
There's a clean attack in the low registers, a very smooth treble and the midrange is very detailed and pleasing to the ear.
I know that amps can be very hard to distinguish from each other, but, to my ears anyway, this one certainly sticks it's nose out.
I'm totally blown away with the excellent sound produced by this 16 dollar gadget!
There's a clean attack in the low registers, a very smooth treble and the midrange is very detailed and pleasing to the ear.
I know that amps can be very hard to distinguish from each other, but, to my ears anyway, this one certainly sticks it's nose out.
Attachments
i'm not have link or website. this circuit my hobby. make for simple systems , line arrey speaker etc.
Member
Joined 2009
Paid Member
yes sir. i develop > designed PCB > part assembled > tested.
Now I design NewVersion...... dimension 80 * 180 mm.
An externally hosted image should be here but it was not working when we last tested it.
