Founded early 2002, AMP-HEAD, LLC, a registered Georgia company, is a supplier of guitar and audio amplifier related products. Our current product specialty- biasing test probes. As our company grows, we will continue to add to our product line without sacrificing our primary goal- to provide our customers with a quality product. AMP-HEAD is committed to customer satisfaction, shipping most orders the same day or next day depending on when they are received. Our probes were first market tested through eBay with an overwhelming customer acceptance selling hundreds worldwide with an excellent feedback record. We believe in providing DIY'er as well as the Professional Tech with the best possible product at a very reasonable price. In early 2002 we introduced our Bias Tester . Primarily through customer requests and suggestions, Mid 2002 we introduced the Dual Bias Tester . It's modeled after the well known Seco Tube Tester manufactured in the early 1960's - with a few of our own improvements. We even consulted with working musicians on this design. What makes our Dual Probe so novel- it doesn't contain the usual internal meter. This significantly simplifies the design as well as reduces the cost. We realized that most techs and DIY'er have there own favorite multimeter in there maintenance kit.