Beigel Technology Corporation : Provides a full range of electronic technology consulting and product development services.

PenguinPix.com : Penguin pictures, penguin videos, penguin posters and Antarctic landscapes.

Mu-Tron.org : The Original Mu-Tron III has been out of production since 1980! Don't buy a fake!

Mu-Tron Products For Sale : The inventors collection for sale! Auction of original prototypes and personal samples by Mike Beigel.

Beigel Sound Lab : General information on the rackmount Envelope Controlled Filter created by Beigel Sound Lab.

Jerry Garcia's Rig: An interactive page featuring Jerry Garcia's rig. Mouse overs display the different equipment.