... signal generator, function generator, frequency counter, bench top meter, spectrum analyzer, curve tracer Shanghai Total Co., Ltd. is producing ... signal generator, function generator, frequency counter, bench top meter, spectrum analyzer, curve tracer, insulation resistance tester, LCR meter, ... 50Hz sin output: approx. 2Vp-p·2TTL/CMOS Output·Amplitude: "0":≤0.6V·"1":≥2.8V·Output impedance: 600 ...