To purchase a JamMan® upgraded with JamExpand technology or if you have a unit you would like upgraded, please email us for current pricing and availability. From time to time, we list upgraded units on eBay. Purchase(s) may be made via PayPal. The JamExpand™ is offered EXCLUSIVELY by Signal Technology Labs.  

Video demonstration clips available here.

Company Profile

The Company
Signal Technology Labs is a certified, small business serving the electronics industry with over 30 years of experience. We began selling reconditioned oscilloscopes on ebay in 2003. Our newest product release is the JamExpand™ technology which upgrades the memory capabilities of the classic Lexicon JamMan®. This technology was developed by an electronics engineer and owner of the company.


Our Location

We are located in south central Virginia near the Blue Ridge Mountains and very close to two historical sites in Virginia. These include the National D-Day Memorial in Bedford, Virginia and the summer home (Poplar Forest) of our 3rd President, Thomas Jefferson, in Forest, Virginia.





JamMan® is a registered trademark of Lexicon and The Harman Consumer Systems Group (HCSG),

a division of Harman International Industries, Inc. with which Signal Technology Labs has no affiliation.


Signal Technology Labs     |     Forest, Virginia     |

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