The Universal Communications Transistor

The Universal Communications Transistor is a device that can operatie predictably, uniformly and adequately in a wide variety of applications at the most important frequencies for communication service. This device should be priced so that the overall cost of the transistor complement in the particular communication equipment is competitive with the cost of a complement of functionally tested devices. A description of the Post Alloy Diffused Transistor (PADT) technique which results in the device characteristics is given. Closely defined characteristics specifying all the information needed by the designer at the most important frequencies are described. The ability of the transistor and its characterization to define the operation under wide conditions of application, circuit environment and operating conditions is given. A 173-Mc mobile communication transceiver as well as a high quality 100-mw Citizens Band transceiver are also described.