See Instek product replacement.
Protek 6510 Dual Trace , 100 MHz Oscilloscope
Four traces may be simultaneaously displayed in ALT-sweep
Five vertical Modes Chl, Ch2, Dual, Add …
See Instek product replacement.
40MHz 2 Channel Analog Oscilloscope with Alternate Magnification
Features:
Bandwidth: Dc to 40MHz
Sensitivity; 5mV-5V/div.
Maximum input voltage; 400V (DC + AC peak) …