Sansui AU-555a….Trasistor Pair..Hitachi 2SC1030…..Tested in unit..Working.

Sansui AU-555a….Balance Control…..Tested in unit..Working.

Sansui AU-555a….Volume Control…..Tested in unit..Working.

Sansui AU-517/717….Speaker Connectors..Speaker Binding Post…tested and Working

Sansui AU-555a…Power Supply Transformer …..Tested in unit..Working.

Sansui AU-555a…Speaker Switch (A or B)…Tested in unit for 5 days.

Sansui AU-555a….Mode Stereo/ Mono Switch..

Sansui AU-555a….Power Switch..Working..Tested in unit for 5 days.