CC-65 is driven by a 9V battery.
Range select switch serves a power switch. When CC-65 is on, Power indicator becomes green. Unfortunatly, it dose not have auto shutdown function. So If you forget turn off it, battery becomes empty.
Push button is “zero adjustment knob”. The button dose not move smooth. I must push it down lightly to cary out the zero adjustment.
The manual of CC-65 says the precision of is 1.5%. I checked the DC current measurement result using constant current power supply. When 500 mA was applied to a coil, the measured value was 498 mA. This result is consistent with the manual.
Next I’d like to conduct a comparative experiment using an accurate ammeter and confirm the results against the AC waveform.
