I did it like this
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I burned Q1, installed another one and now I have 6V on the collector and it was 12 V.
Low sensivity : = You need to use XY mode in oscilloscope because phase changes are more visible than amplitude, for Y channel I am using testing coil laying on the floor.
Without amplifier compensation is less than 1 mV, after amplification it is about 1V.
At 1, I have 15V and 36mA to the coil. = To compare the Tx power with mine, you need to have the same test coil, say 100 turns, coil diameter 10 cm, wire 0.5.
The amplitude at the collector is not the best parameter.
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Originally posted by berreizeta View PostHow do you do that ?
At 1, I have 15V and 36mA to the coil.
Low sensivity :
https://youtu.be/Z1aTZIuyVIo
My oscilloscope has a maximum sensitivity of 5 mV/div and I have a straight line when the coils are balanced, so I add an amplifier to see that weak signal.
What do you have on RCV P1 ?
In 2, I have 0.3V with the coils in null: = maybe you need less , XY mode oscilloscope will answer hat.
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