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TRANSFORMERLESS_LINEAR_MODULATOR

2017-03-04 11:41  
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TRANSFORMERLESS_LINEAR_MODULATOR
Integrated-circuit operational amplifier and field effect transistor in single-ended linear configuration eliminate need for filter and transformer. Carrier level is adjusted by changing d-c bias, which sets gate midway between zero bias and pinchoff.-J. Althouse, linear Amplifier Circuit Eliminates Transformers, Electronics, 39:6, p 99.