MINT Circa 1969 highly collectible Heathkit 5" portable oscilloscope Extra Duty 5 MHZ bandwidth, 10Hz to 500 Khz in 5 ranges, two extra sweep positions can be preset to often - used rates, Frequency compensated vertical attenuation, built in pop calibration reference, Z - axis input, retrace blanking, wiring options for 120 or 240 vac operation. Tested and in good working condition. Weight 24 lbs. Collector quality condition. Comes with original assembly manuals (3) Price $300.00 Free Shipping.