Probe domestic high frequency needle JKT-50L high frequency needle with 3 probes
Test - lowercase jpg
Kaixin micro test
The simple adapter utilizes an NE602 mixing oscillator circuit that produces a 455 kHz IF signal that is amplified by U2 and sent to detector D2 and the oscilloscope's Y-axis to detect amateur bands or portions of the radio spectrum. Vt is used to drive a horizontal axis input within a certain range.
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