Data East Noise Filter

"The Original Data East hum eliminator “HumBucker" HB-001 from White North Retro is the simplest way to help mitigate the annoying and constant 12v hum thats emitted over the speakers on most Data East pinball machines. It doesn’t require any soldering or conversion to your games, just simply plug it in-line with the soundboard power cable and go. The device works on all Data East games as well as the first three SEGA games: Baywatch, Batman Forever, and Frankenstein. Developed, hand tested individually and made in Alberta, Canada. The HB-001 is a must have for any Data East pinball machine.

Reference:

• HB-001.1