
(click for more)
top: "context shot of probing 4 nodes in the LFO circuit"
bottom: "Context shot of the 3 transistors which were replaced - a 2N3905 (PNP BJT), MPS5172 (NPN BJT) and 2N4302 (FET).
Of these, the 2N4302 was confirmed to be the root cause of the failure of the LFO to oscillate. The other two transistors are still functional."

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