@@ALPHALabs02 OK so that means your amplifier cirquit board needs DC not AC. I have only seen dual AC TDA7294 amplifiers. Now I see your board has +VCC and -VCC. Sorry I didn't see it from my phone :D
I have a complicated board that has 2 of these on it already, from a speaker. trying to reuse it. I wonder how difficult it might be. not sure how much power i need to supply. that little vise/ clamp you have is genius i need one!
Nice work. Have you links to the gear?
I will share
What IS the gain and max audio signal voltage ?
The gain depend on network feedback resistor. Max audio signal is input*gain.
Please what is the minimum and maximum voltage required
you can check them in datasheet
Good job, could you share the PCB?
Send email to me, please
Where we can that board
I have no intention of commercializing these products at this time
Hi. What is that board with big capacitors that you are installing between transformer and amplifier? What does it do, what's it called?
It is a power supply
@@ALPHALabs02 ok so what kind, why is it needed if there's a transformer? Doesn't this board take AC/0/AC in?
@manns4 the power supply converts AC to DC. The AC voltage come from the transformer. The amplifiers need DC voltage to working.
@@ALPHALabs02 OK so that means your amplifier cirquit board needs DC not AC. I have only seen dual AC TDA7294 amplifiers. Now I see your board has +VCC and -VCC. Sorry I didn't see it from my phone :D
I have a complicated board that has 2 of these on it already, from a speaker. trying to reuse it. I wonder how difficult it might be. not sure how much power i need to supply.
that little vise/ clamp you have is genius i need one!
Thank you
Good job man
Thank you
Hi, can u share just the schematic of the PA and PSU? thank you so much
Send an email to me
👍
Thank
Hi can i use the TDA7293 with these pcb?
I haven't tried with TDA7293 IC so I'm not sure. Thank you for giving me new ideas.
With 7293
Yes. I am not sure.
Nice & neat. Care to share schematic & pcb?
Thank you. I am going to upload schematic & pcb in tonight
I have uploaded the Gerber file. Hope it is helpful for you.
@@ALPHALabs02 Thanks so much. Seems like the link isn't working though.
@@arthureschner9319 send me my email. I will reply with the Gerber file.
link gerber file not working
Pls, send me an email. The link’s lifetime is short so it is easy to die.
Nice work, diagram please
No problem but it is same in datasheet.
Loose that 7294 and do an ampli. with Lm3886 it's much better.
Yes. LM3886 is also good.
@@ALPHALabs02 So, confront them 7294 and 3886. The same speakers the same room and the same source and then you will see... I mean you hear it.
Good, super,-sir
Thank you