A  new technical paper titled “Accelerating OTA Circuit Design: Transistor Sizing Based on a Transformer Model and ...

As with many inventions, two people had the idea for an integrated circuit at almost the same time. Transistors had become commonplace in everything from radios to phones to computers, and now ...

The original circuit had a variable capacitor to tune ... a lot of frequency stability or fidelity out of a single transistor transmitter. The parts list is minimal. In addition to a coin cell ...

Those go to a circuit board he designed which modulates the carrier with the audio signal using a single transistor and then sends the result out the ultrasonic transmitter. He took care to ...