About Us

Signal Technology Labs is a business serving the electronics industry with over 30 years of experience. We began selling oscilloscopes on ebay in 2003. Our business includes the following:

Pre-Owned Equipment Reseller
Equipment Repair, Reconditioning, and Upgrades
Research and Development (R&D)

You will find our oscilloscopes listed for sale on ebay. Contact us regarding models you may be interested in but not currently listed for sale. We may be close to finishing the reconditioning on the model of interest to you. Please give us the opportunity to work with you. Our seller feedback on ebay reflects our customer satisfaction.

Our customer base includes the electronics enthusiast / hobbyist / professional, small business start-ups, universities, and large corporations. We have many satisfied customers that have purchased one or more of the below products. Since we began selling on ebay in 2003, our sales to-date include the following Tektronix and HP models:

Model/Description

Tektronix TDS540 4-Channel Digitizing Oscilloscope, 1GS/sec, 500 MHz bandwidth

Tektronix TDS544A 4-Channel Color Digitizing Oscilloscope, 1GS/sec, 500 MHz bandwidth

Tektronix TDS620A 2-Channel Digitizing Oscilloscope, 2GS/sec, 500 MHz bandwidth

Tektronix TDS640 4-Channel Digitizing Oscilloscope, 2GS/sec, 500 MHz bandwidth

Tektronix TDS644A 4-Channel Color Digitizing Oscilloscope, 2GS/sec, 500 MHz bandwidth

Tektronix TDS684A 4-Channel Color Digitizing Oscilloscope, 5GS/sec, 1GHz bandwidth

Tektronix TDS684B 4-Channel Color Digitizing Oscilloscope, 5GS/sec, 1GHz bandwidth

Tektronix TDS744A 4-Channel Color Digitizing Oscilloscope, 2GS/sec, 500 MHz bandwidth

Tektronix TDS754A 4-Channel Color Digitizing Oscilloscope, 2GS/sec, 500 MHz bandwidth

Tektronix TDS784A 4-Channel Color Digitizing Oscilloscope, 4GS/sec, 1GHz bandwidth

Tektronix TDS794D 4-Channel Color Digitizing Oscilloscope, 4GS/sec, 2GHz bandwidth

HP1630D Logic Analyzers

We specialize in reconditioned Tektronix TDS5XX, 6XX, and 7XX series digital oscilloscopes and Hewlett-Packard (now Agilent) 163X, 165X, and 166X Logic Analyzers. We are now providing color LCD retrofits as replacements for the Tektronix NuColor CRTs. Example screen shot of an upgraded TDS544A with color LCD retrofit:

LCD Retrofit

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 Thomas Jefferson, our 3rd President, located in Forest, Virginia.