Texas Instruments Types 200 and 201

For the full history of Texas Instruments on this site please return to The

Early History of Texas Instruments Semiconductors.

Twenty times tested

Every Texas Instruments grown junction and point contact transistor must pass more than 20 tests- in addition to continual visual checks – before it is granted the TI trademark and shipped to the user. Texas Instruments inspects all transistors all along the manufacturing process. This 100% inspection insures that the completed product will adhere closely to the published specifications (see distribution curves at lower right) All TI transistors have moisture proof glass-to-metal hermetic sealing. And they are all aged a minimum of 24 hours at rated output as a positive operating double check.

If you want transistors of this insured quality, they are now available from Texas Instruments Incorporated. Write for new junction transistor bulletins DL-S 310

Source: TI advertisement in Electronics November 1953: Courtesy Steve Reyer