[Arny Krueger]

"BretLudwig" wrote in message
lkaboutaudio.com
"Back when I was in high school, this was true.

But that was in the 60s.

My point, exactly.


The quintessential requirements are an amplifier running
a pair of reasonable tubes in push pull with a good
output transformer with a well designed driver stage and
an adequate power supply.

I don't know why I would hobble a modern high school
student with all thislegacy technology. I'd rather have him build a LM
3875
amp, and find out what really matters in audio, which
isn't amplfiers.

It is recommended that point-to-point wiring be used and
that the audiophile construct the chassis himself
(rarely, a herself will, but it's unusual in the extreme,
females having more sensible things to do most often) to
achieve the highest satisfaction and skills achievement.

Do-it-yourself board etching is more to the point."

For one thing, Arny, the DIY electronics hobby lost a lot
of people when board etching began being touted as a
necessary part of the hobby by all the magazines.

Unsupported speculation.

When it comes to LM 3875 amplifiers, there is no lack of pre-etched boards.
I see them for as little as $15 for a stereo pair, on eBay.

It's highly tedious and unpleasant and people don't like it.

Speak for yourself - that would be all that you are qualified to speak for,
anyway.

And that was when people often had darkrooms, the perfect
place to do it.

Darkroom is not even necessary.

For another, etching single layer boards by photoresist
or manual silk screen and etching in ferric chloride or
even nitric acid is as commercially obsolete as
pointwiring tube circuits.

Agreed that point-to-point wiring of circuit components is commercially
obsolete.


A "thoroughly modern" school
would need CAD board prototyping gear at least and
probably a basic semiconductor fab to be really current.

It turns out that the engineering school that I graduated from has both.

Schools won't even allow sodium cyanide in chem labs
anymore. You want to bring in arsine and phosphine gases,
a hydrofluoric acid washer and a RF supply with a
4CX20000?

You're way off the deep end, Bret. Personally, I like the 2 for $15.00 LM
3875 boards from eBay.