Ham College 91 - Extra Class Exam Questions – Part 29
- Author
- [email protected]
- Published
- Sat 30 Jul 2022
- Episode Link
- http://www.amateurlogic.tv/transmitter/video/hc91.mp3
E6F Electro-optical technology: photoconductivity, photovoltaic devices, optical sensors and encoders, optical isolation.
50:38
