E
Ecnerwal
Guest
....which is darn near as useful as a buggywhip, these days.
Got two rails of PCA 1829 10Base-T transformers in DIPs in a mixed lot
of NOS crap which had some more obviously useful things in it, as well
as some that are probably less useful, and just a few bits that look not
actually NOS.
Closest I can find to an applicable datasheet, though mine lack the "B"
at the end:
http://www.pca.com/datasheets/EPA1829B.pdf
Turns out they make a dandy Joule Thief (blocking oscillator)
http://www.bigclive.com/joule.htm
(vampire flashlight) transformer - two, in fact (I suppose next I see if
cutting the package in half destroys them or not - it's 12 pins for two
center-tapped transformers in one 16 pin sized package with no pins in
the middle, so it seems plausible that it's two separated cores in
there.) Considering the low likelihood that I'll be building any
10Base-T interfaces from scratch, that's a much better outcome than
"hmm, obsolete, useless." I suppose to some extent they would be a small
pulse/isolation transformer in a general sense, though I have not
investigated that further as yet.
--
Cats, coffee, chocolate...vices to live by
Please don't feed the trolls. Killfile and ignore them so they will go away.
Got two rails of PCA 1829 10Base-T transformers in DIPs in a mixed lot
of NOS crap which had some more obviously useful things in it, as well
as some that are probably less useful, and just a few bits that look not
actually NOS.
Closest I can find to an applicable datasheet, though mine lack the "B"
at the end:
http://www.pca.com/datasheets/EPA1829B.pdf
Turns out they make a dandy Joule Thief (blocking oscillator)
http://www.bigclive.com/joule.htm
(vampire flashlight) transformer - two, in fact (I suppose next I see if
cutting the package in half destroys them or not - it's 12 pins for two
center-tapped transformers in one 16 pin sized package with no pins in
the middle, so it seems plausible that it's two separated cores in
there.) Considering the low likelihood that I'll be building any
10Base-T interfaces from scratch, that's a much better outcome than
"hmm, obsolete, useless." I suppose to some extent they would be a small
pulse/isolation transformer in a general sense, though I have not
investigated that further as yet.
--
Cats, coffee, chocolate...vices to live by
Please don't feed the trolls. Killfile and ignore them so they will go away.