This is a General Aviation aircraft communication radio that is very common and I created this image in my book for my students to help illustrate proper usage. It has all of the LED digits and you may take them apart to create different frequencies. The frequencies it uses are 118.00 to 136.97 Mhz. 760 channel radio aircraft radio val com 760 Aircraft Communication Radio with LED Fonts
This is an Audio Panel used in General Aviation aircraft. It is used to turn on the sound for different avionics. The selections are Speaker, Off, or Headset. It also allows the pilot to control the brightness and audio for the marker beacons. audio panel switch box nav Audio Panel
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The symbol used for a Non-Directional Beacon (NDB) on air navigation charts. map chart symbol Non-Directional Beacon (NDB)