Lingenberg Sound offers electronic circuit prototype construction and testing services. If you are an engineer needing help building electronic circuit prototypes, testing, circuit optimization or repair Lingenberg Sound can help. Rates are $45 an hour plus parts and shipping.

Engineering Projects:

Lingenberg Sound worked on the development the following products with Beigel Technology Corporation ( Mike Beigel ). This work included circuit design, building breadboard prototypes, circuit optimization, testing and building hardwire prototypes:

Electro-Harmonix Mini Q-Tron

Electro-Harmonix Bi-filter 

Electro-Harmonix Stereo-Polyphase  

Electro-Harmonix Enigma 

( Note: Lingenberg Sound only worked on the development of the first Breadboard and the first hardwire prototype for these products and not the production prototypes )

Call Richard Lingenberg at 714-856-7120 or  

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