9 Electronic Components and Circuits in the Data Conversion Field, namely, Digital to Analog Converters, Analog to Digital Converters, Synchro to Digital Converters, Hybrid Synchro and Resolver Converters, Resolver to Digital Converters, Hybrid Thick Film Data Converters, Digital to Resolver Converters, Digital to Synchro Converters, Inductosyn to Digital Converters, Solid-State Control Transformers, Solid State Control Electrical Transformers, Power Supplies, Solid State Remote Electrical Power Controllers, Air-Cooled and Conduction Cooled Electronic Printed VME Circuit Boards, Solid State Power Controllers (SSP) and Remote Power Controllers (RPC), Solid-State Electronic Hybrid Circuits made up of Two or More Different Monolithic Integrated Circuits, Solid State Electronic Circuit Modules Immersed in a Potting Material to Form a Solid Block, Electronic Solid-State Encoder Interface Circuits, Solid-State Electronic Position Sensor Interface Circuits, DC-DC Converters for Converting a DC Input of a Given Level into a DC Output of a Different Given Level, Electronic Motor Drive Modules for Controlling Motors and Composed of Discrete Integrated Circuits Integrated Together into One Solid Substrate Block; Data Repeaters; Video Display screens for commercial and industrial use; Multiplexers; Electronic Depth Indicators, Shaft Encoder Angle Indicators, Synchro/Resolver Angle Indicators, Synchro/Resolver Angle Simulators, Shaft Angle Encoders; Data Processing, Data Communication, Data Display, and Data Recording Equipment, namely, Digital Panel Meters being Electronic Instruments That Display an Input Signal, Multi-Chip, Multi-Channel Data Acquisition Devices, Signal Conditioners, Instrumentation Amplifiers, and DC to DC Converters; Electronic Amplifiers; electric relays