IR phototransistor

[Fred Bartoli]

I've found the ideal, but still unobtainium phototransistor, Vishay's
VEMT4700F.
Features surface mount, wide angle (120° half sensitivity), IR filter,
and base access. All this is required.

Unfortunately unavailable for now.

Any other reference with all those features? I can trade surface mount
for availability for prototyping

 

[Fred Bartoli]

Phil Hobbs a écrit :

"Ideal phototransistor" isn't just unobtainium, it's antinomium.

How about a nice BPV22NF and an op amp?

Cheers

Phil Hobbs

Thanks, will go with that one. Don't know why I did focus only on 2
junctions...
Sometimes we feel old...

 

[Glen Walpert]

.

"Ideal phototransistor" isn't just unobtainium, it's antinomium.

Antinomium, nice word, I had to Google it:

from Secret Symbols of the Rosicrucians (Second Book):
But when Thomas Aquinas calleth it Antinomium, he doth so because of its
black ...
Antinomium is opposed to all metals and burneth them all except the
gold. ...

Also used in vitamin supplement descriptions, but not in dictionaries
yet. Looks like you are the first to use it with the meaning of "name of
something impossible" or perhaps "self contradicting nomenclature" - but
I think it might catch on. Clearly a far better word than the plebeian
and vaguely insulting "oxymoron", the use of which should be deprecated
now that we have a better word . I am emailing it to a group of
friends as the word of the day, I think they will like it better than the
last one I sent, which was reocentric. (They are a psychocentric bunch.)

Glen

 

[Rich Grise]

Phil Hobbs wrote: ....
Well....wish me some luck; i am (in spare time) working on a 4-sided
triangle.
First crude "cut" is interesting and shows some possible clues.
Be advised eye ayint meekanocull genrus.

Here's a project for you:
http://en.wikipedia.org/wiki/Blivet

Have Fun!
Rich

 

[josephkk]

[Spider described the business of being a writer as "toiling in the
antinomy mines", and that writers were thereby subject to a ghastly
occupational disease known as "black brain". A better man with puns
and plays on words, I have yet to meet.]

--
Dave Platt <[email protected]> AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

Piers Anthony (with fan club as needed) can probably go a few rounds with
Spider.