"Watson A.Name - Watt Sun, Dark Remover" <
[email protected]>
wrote in message
: In article <
[email protected]>,
[email protected]
: mentioned...
: > "Watson A.Name - Watt Sun, Dark Remover"
<
[email protected]>
: > wrote in message
: > : > : In article <
[email protected]>,
: >
[email protected]
: > : mentioned...
: > : >
: >
: > That is true. I've sub'd many a PP-Jelly bean for another,
: > I bought a big pack of PNP and another of NPN transistors
: > at RS and used them in circuits that called for other #s
: > and they worked. Might have to tweak the size of a resistor
: > or cap here and there, but no big deal. Maybe 10-20 ohm,
: > or .02-.1 uF on a cap, but most times you can get away with
: > one of each type.
: >
: > : But then, I've seen cheap consumer equipment where almost
all
: > of the
: > : transistors are 9014s or ones in that same number series.
So
: > maybe
: > : they're right..
: >
: > I read something on using NPN in place of a PNP and
: > vice-versa, but I could not get that to happen. Must
: > be doing it wrong.
: >
: > : See my other followup for a chart of many common
transistors
: > and a
: > : brief list of their specs.
: >
: > I saw, and $.03 per transistor is not bad at all.
: > Then again, I doubt I will live long enough to use
: > 2000 of them. Not sure I could use 200 even. ;-)
:
: Yes, some mfrs offer reels with 5k or more. For some reason
the
: Mousers and Digi-keys don't want to deal with qtys less than 2k
or
: more in certain high volume parts. So you may not be able to
get 'em
: in even as little as 2k qtys.
Some don't like dealing with small time folks like
repair shops and homebrew'rs like me. Sucks, but fact.
: I've been watching Ebay for discretes, and I see the common
ones for
: $3 to $5 a hundred, depending on qty. Some guy offers old TO-3
metal
: can transistors for $40 a hundred, and no one bid on them. One
would
: think that he'd know better since he seems top be an
experienced Ebay
: dealer.
Guess he failed general math. $.40 each is
sort of high, I would think for quantity.
: That's what I'd like to ask people here. I see 2N4036 trans
offered
: for some minimum bid. They claim they're new parts. But on
the data
: sheet the beta range is 10:1, so one could be buying some
picked over
: trans, where the gain range is on the low end of that range,
i.e. all
: one may be getting is the bottom of the barrel. I just wonder
if
: anyone has had experience with buying these things. I know
that the
: ones I bought came still attached on tape, so I feel reasonably
: certain that they're new, unculled parts.
I tend to only trust those that say NEW or NOS,
with a picture of actual packaging, unless I do
truly know what the item is, then only rarely.
I'll buy used eproms and such, and the occasional
vintage test equipment, but they better have a
guarantee of some kind otherwise.
Bill @ GarberStreet Enterprizez };-)
Web Site -
http://garberstreet.netfirms.com
Email -
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