¿Quieres hacer un Pre+Amp que funcione con una etapa 12AU7 y una etapa de amplificación HiFi con el TDA7293 y control de tonos aislados?
¿Quieres hacer un Pre+Amp que funcione con una etapa 12AU7 y una etapa de amplificación HiFi con el TDA7293 y control de tonos aislados?

Want to make a Pre+Amp that works with a 12AU7 stage and a HiFi amplification stage with isolated tone TDA7293 and control?
The preamp and the chip amp are two different things. You need to ask about the preamp part in the Tubes and Valves area of the site:
https://www.diyaudio.com/community/forums/tubes-valves.5/
And the Chip Amp here:
https://www.diyaudio.com/community/forums/chip-amps.40/
Could be an interesting project 🙂
https://www.diyaudio.com/community/forums/tubes-valves.5/
And the Chip Amp here:
https://www.diyaudio.com/community/forums/chip-amps.40/
Could be an interesting project 🙂