The TDA2822 obviously can not stand the 12V. After having blown two TDA2822's, I soldered a socket in its place, and made an adapter for the LM386, which never failed at 12V.
Here is the wiring:
LM386 pin:? ? ?2? -? 4? ?TDA2822 corresponding pin
? ? ? ? ? ? ? ? ? ? ? ?3? -? 7
? ? ? ? ? ? ? ? ? ? ? ?4? -? 4
? ? ? ? ? ? ? ? ? ? ? ?5? -? 1
? ? ? ? ? ? ? ? ? ? ? ?6? -? 2
Very simple and effective.
73's
HB9CGL Claude
