238-7388, Testec, Testec 8000 Series TT-SI 8010A Oscilloscope Probe, Differential Type, 70MHz, 1:100 / 1:1000dB, BNC Connector Testec 8000 Series TT-SI 8010A Oscilloscope Probe, Differential Type, 70MHz, 1:100 / 1:1000dB, BNC Connector