All
images and text copyrighted and property of Greg Gagliano.
This is not a back-lighted panel, but rather the panel material emits
light when a voltage is applied. This high voltage technology, while
common in other areas such as the automotive industry, was probably not
a great
idea for the working musician dealing with ungrounded equipment at that
time. You can appreciate this if you've ever been zapped when your lips
touch a microphone while playing guitar or bass.