The Airborne DC Signal Conditioning Amplifier Yesterday, Today, and Tomorrow
G. E. Wenzel · IEEE Transactions on Aerospace · 1965
The design evolution of an amplifier for use in signal conditioning is presented. The advantages and limitations of several designs are discussed. The progressive development is described arriving finally at a most promising method which utilizes old circuitry but new concepts. Detailed characteristics that show unusual advances in power saving, weight, and volume, which are critical aspects in space application, are given.