We will have closure to this thread/story now: I ordered 25 x J300 (NOS?) from BGMicro after previous poster pointed out they had some...hoping these were real/NOS...because no photos of markings on p

Would be nice to get a few NOS J300s...but...I dont know about that vendor but at 0.62$ each....no picture...does not say these are NOS?....Ive gotten so many fake semiconductos in the last few years,

Well since Im the OP ill update... This week sorting parts I fell upon a 2n5458 (NOS) that looks close to J300 specs...lets recap & quickly clear up stuff... *Scope arrived to me with prob with ch A (

thanks to all who replied - the 2215A scope is off the bench for now but Ill get back to it soon and will report when I get this working...I am almost at the point of sticking a high quality transisto

HI All... Got a Tektronix 2215A. Channel 1 was bad, no signal coming through. Channel 2 fine. Found Q122 Jfet on channel 1 was a J210 part # and bad... already replaced a while back perhaps? should be