One of the holy grails of Ghostbusters props, this device was seen in Ghostbusters 2 and used by Egon. The main body is made from a Redman Scrub n’ Buffer, a shoe and furniture polisher from the early 80s. These are quite difficult to get hold of, though appear on ebay and gbfans on occasion. Some fans have been able to cast resin copies of the main body with some success.

Due to the complicated shape, very few of these casts were made. These occasionally show up on the gbfans.com for sale section

The main body was extensively modified, sanded and smoothed. An addition portion was added to the top of the body to house the microphone scanners and the gears to move them. The microphones are from a found part, a Realistic Stereo Microphone. These can be easily found on ebay.

The electronics are completely custom for the gigameter, and require some electrical and motor knowledge. The Microphones move from a geared system that pulls them back and forward. The dome is lit and works on the principle of fibre optics with colour tint sheets to make the different colours seen. If you’re thinking of replicating this prop, check out cyland props build here http://www.cylandprops.com/gigameterpage1.html and also, read Bob Wobbaz’s gigameter build here http://www.gbfans.com/community/viewtopic.php?f=34&t=37290