NPN vs PNP input stage

[sam9]

Going back to the original question, I think the mostb significant reason is habit and familiarity with a particular orientation in the schematic. If you learn about the subject from schematics showing it in a particular orientation you are likely just to continue the pratice.

I, too tried to see if Space gave any insight, I even tried combining each orientation with quasi-complementat outputs of each orentation for a total of four permutations. ( A waste of a rainy afternnon with nothing else to do!) There were no differences that effected significant digits.

This suggests a scheme to charge exorbitant sums in the high-end market: build and amp with R & L channels topologicaly inverse from one another and attribute magical properties to the concept. "Right vs. Left is an outdated Eurocentric concept, we should really be concerned with Yin and Yang channels . . . ."

[a31_ford]

Off Topic> "Medical Equipment"

Even when I said "don't go there"

In a nutshell, I have been told that NPN is more coudusive to being used in enviroments around the human body.

(Somthing about bio-feedback induced nano-currents, from ground loops when using PNP devices).

Remember, the electronic probes used on humans are MORE sensitive that an LNA / LNB in a satilite dish.

[Nelson Pass]

Dimitri, be nice.

A lot of people have awaited the return of Halojoy, enignmatic
as his posts might be.

Elso Kwak has not disappeared at length, but he enjoys similar
affection.

Remember this is the entertainment industry. (Personally I
am waiting for Asia Carrera, Mensa member, to take an interest
in hi-fi and climb in here). We could use a non-male viewpoint.

Anyway, I think that PNP's were and are popular because the
original RCA manual used them that way, and they remain
vestigial design items, like output coils.

Cheers, as Goldfrapp says.

[GRollins]

I seem to recall that Raquel Welch is reputed to have a fully operational brain too, although Asia Carrera has the advantage in years, at least at this point.

Grey

[traderbam]

As early as in the seventies I remember a French designer claiming that complementary transistors never could be complementary.

These French - always refusing to follow the herd, instead sticking to UNpopular principles.
Ok so who told the French that electricity itself is asymmetrical? Who gave it away? The fact that electrons and holes are not opposites was supposed to be a secret. What do you mean they worked it out for themselves?
Hey, what do ya know, these gents aren't just about brie and accordions after all!

[john curl]

Electrons are from Mars, holes are from Venus!

[Nelson Pass]

I'm going to mark this in red on my calendar:

*** John Curl makes joke ***

[Christer]

Maybe we should try to do designs that use both matter and
anti-matter? Then we would have a perfect symmetry between
electrons and positrons. There will be some slight techincal
problems to make it safe and functional, perhaps, but on the
other hand, we probably won't need any external power source.
Come to think of it, maybe it will even be self-soldering.

[Nelson Pass]

Originally posted by Christer
Maybe we should try to do designs that use both matter and
anti-matter? Then we would have a perfect symmetry between
electrons and positrons.

I've always wanted to play with a P type tube.

[ingvar ahlberg]

I've always wanted to play with a P type tube.

Its exactly the same as a 6L6G but with the vacuum on the outside and the cat inside.