Modern BJTs do, indeed, approach Triodes in their distortion levels etc.

Constructive post - thanks, Trevor. I'll look into the devices you mention. As
I've pointed out a few times, I'm just quoting designer Lynn Olsen in these
posts, though of course I'm an enthusiastic valve user. Andy.

=== Andy Evans ===
Visit our Website:- http://www.artsandmedia.com
Audio, music and health pages and interesting links.

"Andy Evans" wrote in message
...
Modern BJTs do, indeed, approach Triodes in their distortion levels etc.

Constructive post - thanks, Trevor. I'll look into the devices you
mention. As
I've pointed out a few times, I'm just quoting designer Lynn Olsen in
these
posts, though of course I'm an enthusiastic valve user. Andy.

**It seems Lynn Olsen is seriously under-educated and should, perhaps,
refrain from making untrue statements.

BTW: There's nothing inherently wrong with a properly designed tube amp. Nor
is there anything wrong with a properly designed BJT amp, for that matter.
There's plenty of junk on both sides of the fence.


--
Trevor Wilson
www.rageaudio.com

**It seems Lynn Olsen is seriously under-educated and should, perhaps,
refrain from making untrue statements

Well, he may stick his neck out a bit but he's a good designer with a long
industry pedigree - several years with Tektronix. Under-educated, no.
Opinionated - well, compared to folks on this ng., I'd call him excessively
polite!

=== Andy Evans ===
Visit our Website:- http://www.artsandmedia.com
Audio, music and health pages and interesting links.

"Andy Evans" wrote in message
...
**It seems Lynn Olsen is seriously under-educated and should, perhaps,
refrain from making untrue statements

Well, he may stick his neck out a bit but he's a good designer with a long
industry pedigree - several years with Tektronix. Under-educated, no.
Opinionated - well, compared to folks on this ng., I'd call him
excessively
polite!

**I am only basing my comments on what you wrote. It seems his knowledge
(based on what you wrote) of solid state devices, is well behind the times.


--
Trevor Wilson
www.rageaudio.com

In article ,
Andy Evans wrote:
Well, he may stick his neck out a bit but he's a good designer with a
long industry pedigree - several years with Tektronix. Under-educated,
no. Opinionated - well, compared to folks on this ng., I'd call him
excessively polite!

Interesting that Tek moved into the use of semiconductors as soon as they
could...

--
*Nothing is foolproof to a sufficiently talented fool.

Dave Plowman London SW 12
RIP Acorn

"Andy Evans" wrote in message


**It seems Lynn Olsen is seriously under-educated and should, perhaps,
refrain from making untrue statements

Well, he may stick his neck out a bit but he's a good designer with a
long industry pedigree - several years with Tektronix.
Under-educated, no. Opinionated - well, compared to folks on this
ng., I'd call him excessively polite!

If Lynn Olsen tried to pass of crap like that cited in this thread at
Tektronix, he'd have been thrown out on his ear.

Maybe that's why he's not there any more, eh?

When solid state electronics replaced tubes, some designers just couldn't
cope...

Ironically, Lynn Olsen posts test results
http://www.aloha-audio.com/triode1.html based on using a Tektronix SG505
(all solid state) signal generator.

Ironically, Lynn Olsen posts test results
http://www.aloha-audio.com/triode1.html based on using a Hewlett-Packard
8535A (all solid state) spectrum analyzer!

Ironically, Lynn Olsen brags at http://www.aloha-audio.com/triode1.html
about his experience in the Tektronix spectrum analyzer division, and then
posts results made with a HP spectrum analyzer.

I really think we ought to follow what Lynn Olson does, and not what he
says...

LOL!

"Dave Plowman" wrote in message


In article ,
Andy Evans wrote:
Well, he may stick his neck out a bit but he's a good designer with a
long industry pedigree - several years with Tektronix.
Under-educated, no. Opinionated - well, compared to folks on this
ng., I'd call him excessively polite!

Interesting that Tek moved into the use of semiconductors as soon as
they could...

Early adopters, even. When I worked for IBM in the late 60's our workhorse
was the 453 'scope which had exactly three tubes, one of which was the CRT.
There were literally dozens of transistors in it. Later Tek models quickly
reduced that to just the CRT.

In article , Andy Evans
wrote:
**It seems Lynn Olsen is seriously under-educated and should, perhaps,
refrain from making untrue statements

Well, he may stick his neck out a bit but he's a good designer with a
long industry pedigree - several years with Tektronix. Under-educated,
no. Opinionated - well, compared to folks on this ng., I'd call him
excessively polite!

If he is a "good designer", then I'm afraid that the chunks of his writings
that you have posted may do him a dis-service. They seem largely to be
unsupported assertions.

Slainte,

Jim

--
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Audio Misc http://www.st-and.demon.co.uk/AudioMisc/index.html
Armstrong Audio http://www.st-and.demon.co.uk/Audio/armstrong.html
Barbirolli Soc. http://www.st-and.demon.co.uk/JBSoc/JBSoc.html

On Thu, 24 Jul 2003 10:33:36 +0100, Dave Plowman
wrote:

In article ,
Andy Evans wrote:
Well, he may stick his neck out a bit but he's a good designer with a
long industry pedigree - several years with Tektronix. Under-educated,
no. Opinionated - well, compared to folks on this ng., I'd call him
excessively polite!

Interesting that Tek moved into the use of semiconductors as soon as they
could...

I used to work with the big Tek 'scopes in the late '60s and early
'70s. We had to replace a tube at least twice a week in these
suckers....
--

Stewart Pinkerton | Music is Art - Audio is Engineering

If he is a "good designer", then I'm afraid that the chunks of his writings
that you have posted may do him a dis-service. They seem largely to be
unsupported assertions.

Well, Jim, the first thing I posted was his website details. I didn't want
people to just slaver over a few scraps like vultures, but alas you can't trust
Kruegerton do do anything else. I don't have a problem with you - you ask
intelligent questions and are careful to back up your work with science.
Obviously Olsen, as a Tektronix man, has carefully measured everything he works
on, and if you take the trouble to read his website I;m sure it'll make more
sense in its entirity. Cheers, Andy

=== Andy Evans ===
Visit our Website:- http://www.artsandmedia.com
Audio, music and health pages and interesting links.