is there anything on interferences?
Hi CS,bloody hell, I guess I have to do the PCB layouts again....
Its essentially STs design, they should not be oscillating then.
I bet you are not.hm, they sell TDA7293 kits everywhere, why am I the only one th have troubles.
hm, they sell TDA7293 kits everywhere, why am I the only one th have troubles.
I grew up with tube types. Many without cathodes - just the filament (DC powered), a grid and a plate (the first transistor of the age!!! - at least, how I still think of transistors, despite "hole" theory).
My fav? RCA 6146A. 2nd fav - 5u4. With the plates glowing red and the blue haze of ionization, you knew you were sucking some serious amps....
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These types of IC's are Very Susceptible to Ground Loops that cause oscillations.
All Ground traces should return separately to a Common Point as a ground.
hm, they sell TDA7293 kits everywhere, why am I the only one th have troubles.
You're not. Audio power amplifiers are notorious for oscillations, extreme grounding sensitivity, and other headaches. If there is a suggested pcb layout in an app note, follow it to the micrometer and decouple the doors off of everything.hm, they sell TDA7293 kits everywhere, why am I the only one the have troubles.
I have some of those books, very dear old friends. I'm combining my work and home office libraries, and have been traveling down memory lane with some of the analog bibles.Today I was searching the net for information on radio frequency transformers and came across this great site
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