1960’s. Then Sansui perfected tube amplifier technologies by the end of the 1960’s with the 1000 / the 1000A receiver the AU-70 / AU-111 Integrated amplifier, the CA-303 Control amplifier the BA-202 / the BA-303 power amplifiers. Sansui’s original business was based on manufacturing tube transformers; however Sansui spanned off the entire transformer business to Hashimoto Hasimoto electric in 1979 including the original Sansui logo. Hashimoto provided the AU-111 power and output transformers to Sansui when Sansui reissued the famed AU-111 in 1999. Hashimoto currently provides branded vacuum tube valve amp amps amplifier amplifiers transformer transformers; these transformers include 34 different MC interstage line input and output tube transformers as well as choke coils. This site provides the actual examples of Hashimoto Hasimoto transformer implementations with schematics and vacuum tube data sheets. This site also provides sources for used, NOS and new tubes high end electrolytic and coupling caps capacitors resistors and other tube amp related parts.