These Original Semiconductors are all brand new. (NewOldStock)
All Transistors (mostly Sanken Brand) and Sanyo Power IC´s are originated from former Spare Part Stock and delivered between 1967 - 1981 from Sansui Electric Co in Japan. Sanken have a high reputation for their Power Transistors and Sansui mostly choose those for their amplifiers. All Semiconductors in stock are 100% genuine. You might wonder why I´m telling you this.
The reason is there are counterfeit components on the market. Despite they have a Manufacturer Trade Name as a marking, they are not made by them and doesn´t have equal specifications. It´s not easy to see the difference between a genuine and a fake transistor. For more information about counterfeit Transistors and IC's visit