Sansui SC 636 and Hbuster HBD4100, SCD3150 car audio system schematic

 

Sansui SC 636 Stereo Cassette Tape Deck circuit diagram using transistors only

Hbuster HBD4100, SCD3150 - car audio system schematic and Exploded view

Used ICs: IP4001S, S1L9226, S5L9279X, K4S161622