===== Ham College 91 - Extra Class Exam Questions – Part 29 =====
**Released: July 30, 2022**

**Show Hosts** 
      * George Thomas (W5JDX)
      * Tommy Martin (N5ZNO)

**Topics**
E6F Electro-optical technology: photoconductivity, photovoltaic devices, optical sensors and encoders, optical isolation.

Runtime(50:38)

**Questions**
      - E6F01
      - E6F02
      - E6F03
      - E6F04
      - E6F05
      - E6F06
      - E6F07
      - E6F08
      - E6F09
      - E6F10
      - E6F11

**Watch**
      * Download http://www.amateurlogic.tv/downloads.htm
      * https://youtu.be/fL4Xz45t21M
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