Production Engineering Measure. Transistor, VHF, Silicon, Power 25 Watt, 100 mc

摘要

This work covers the progress during the period 1 April 1965 to 31 July 1966. Processing of lots in pre-production continues to give assurance of good yields on a controllable basis. The change to a silicone molded package has given yield, package integrity, strength, and cost advantages over the older micropower package. The technique of using emitter and base stabilized resistors added to the crystal pattern of the original design gives improved saturated power handling and linearity. Temperature tests run by I. R. techniques show that the device is evenly balanced and stabilized. The efficiency and power gain is substantially increased by over 10% and 2DB over the original devices. The design has been optimized for 25 watts and is proving out in field tests. (Author)