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Instead of describing, why not upload a picture of what you have, and it helps to analyse?how do i detect? is it waveform on 1st quadrant is equal to P type and waveform on third quadrant is equal to n tpye?
i mean as to determine pnp or npn diode
hi Shermaine,
A transistor has a pn and a np junction.
In a pnp transistor the 'n' section is sandwiched between the two outer 'p' sections.
With a npn transistor its the 'p' section in the middle of the sandwich.
Is this what you mean.?
The PNP transistor is in the 3rd quadrant and the NPN in the 1st quadrant on a curve tracer.how do i detect? is it waveform on 1st quadrant is equal to P type and waveform on third quadrant is equal to n tpye?