It's worth around $350 in good cosmetic and working order.
In the backbox on aux board attached to sound board. They call it a balance control. It is small. The backside of my swig out backbox display panel has a sound diagram on it.
The sound of falling coins that what sound they make why don't you take some coins and drop them to find out.
kreaking
That sound usually signifies a "match" or "high score free game". For a "Match", most pinball machines have a game of chance at the end of your session to win a free game. Your final score is shown on the machine, the last two numbers particularly. The machine then randomizes it's two numbers on the same screen. If your number and the machines number is the same, you've won a free game credit. For a "High Score Free Game", when a certian score is reached, you earn a free game credit. The score needed varies by game, and is changable by the machines operator. Both instances produce a snap sound.
Jingling sound
The Incredible Sound Machine was created in 1991.
swish
swish
what machine can be used to measure sound waves
jingling
I'll take a stab at answering your comment. Although, for future reference this is a website where you are supposed to ask questions, and there is no way to answer what you said. Although, I will try, The sound of a clad coins and a silver coin sound different when they hit a solid surface. Silver will kind of make a "tingy" sound, where as clad coins make more of a dull sound when they fall on a table or something similar.
The address of the Sound Bar located in Chicago is: 226 W Ontario St Chicago, IL 60654, United States.