moogah wrote:With the leads facing down and the flat side facing you the pins go: E C B
Note that there are a few different ways to measure 'beta' and your meter may not be the same as another. Therefore, just pick the highest beta (test all of them) and mark those with wite-out or similar.
Be sure to read the manual for your multimeter to see if it has transistor beta/hFE/gain testing.
Etaoin wrote:You all do realize that almost none of the meters out there are calibrated so comparing one person's gains to another's is meaningless. My 295 might be someone else's 325.
zero01101 wrote:going on relativity however, is it fairly safe to assume that if i have many in the 270-290 range and one at 342 that one's my good one?
Etaoin wrote:Sadly I'm not the one to comment on which range of beta values goes where. I just wanted to observe that these are not absolute values. You'd have to measure the ones from a real 303 on YOUR meter to get it exactly right. I just picked the ones that had the highest reading on my meter for Q8-10 and it sounds ok to me. But I'm not a purist (I guess I'd have bought a real 303 if I was...)
Etaoin wrote:By the way, I'm not stating this as established fact. It's just my understanding of these readings. It's possible for anyone to come in here and state that all meters offer you highly acurate beta readings. It's just that I have two meters over here which can't agree even on plain DC voltage, let alone on beta, so my guess is that it will differ.
subatomic wrote:If someone has the definitive word on this, please post it...
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