===== Ham College 86 - Extra Class Exam Questions – Part 24 ===== **Released: February 26, 2022** **Show Hosts** * George Thomas (W5JDX) * Tommy Martin (N5ZNO) **Topics** E6A Semiconductor materials and devices: semiconductor materials; germanium, silicon, P-type, N-type; transistor types: NPN, PNP, junction, field-effect transistors: enhancement mode; depletion mode; MOS; CMOS; N-channel; P-channel. Runtime(53:47) **Questions** - E6A01 - E6A02 - E6A03 - E6A04 - E6A05 - E6A06 - E6A07 - E6A08 - E6A09 - E6A10 - E6A10 - E6A11 - E6A12 **Watch** * Download http://www.amateurlogic.tv/downloads.htm * https://youtu.be/kZnKU2rbKyA **Sponsors** * Icom America http://www.icomamerica.com