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February 10, 2013 / consort3

Hi fi humour

Updated 7 May 2016

Me tasting the latest batch of moonshine:

saner
engineer

Engineer: Someone who does precision guesswork based on unreliable data provided by those of questionable knowledge

turntable

My solution to the lateral tracking error problem. Don’t get me started on inertia.

trackerr

Delightfully nostalgic article on how to choose a pick-up arm:

http://www.popsci.com/archive-viewer?id=6CkDAAAAMBAJ&pg=176

Contemporary amplifier selection

http://www.popsci.com/archive-viewer?id=iiEDAAAAMBAJ&pg=212

I was working in my Lab late one night…

https://www.youtube.com/watch?v=l2PoSljk8cE

Some hi-fi definitions from a Mad magazine of 1958

Tuner A salt water fish

Amplifier What you make to burn an ampli

Pickup Someone to listen to hi-fi records with

Wow Listening to hi-fi records with loose pickup

Flutter Reaction during Wow

Resistor What you should do with loose pickup

Diamond needle What Hi-fi guy gets from impatient marriage minded girlfriend

Pitch What you get from hi-fi salesman

Flutter is the 7 letter F-word in aviation circles. It was first documented in 1916 by Leonard Bairstow. Flutter can be serious, see this Youtube video of aircraft:

https://www.youtube.com/watch?v=egDWh7jnNic

The infamous Tacoma Narrows Bridge was a victim of flutter:

http://motherboard.vice.com/read/the-myth-of-galloping-gertie

Analysis of failure of another bridge from the same area:

http://gizmodo.com/new-analysis-confirms-why-the-skagit-river-bridge-colla-1785842162

Talking of failing bridges Bobby Darins Clementine

https://www.youtube.com/watch?v=Vc9UKWzJmpU

Amusing Diyaudio thread on the Tiger amp which had a reputation for thermal runaway.
http://www.diyaudio.com/forums/solid-state/92036-1971-plastic-tiger.html

Bonsai (after William Blake)

Tiger tiger burning bright,
your output circuit is black as night
Your front end looks great
but its the overall oscillations that we hate
They are, we fear, linked to that Output stage
and that really shows your age
For the culprit is that common collector
that really screws the transfer vector
We see excess gain and poles galore
and then, just when we thought it safe, even more
no miller capacitor just like Doug told us
this I tell you is why there is a fuss!
So friends, lets ditch this burning design
and go for something a bit more benign.

Actually looking at the circuit, Bonsai means commoned collector, as the  output stage is common emitter, which may explain the tendency for thermal runaway.

Not hifi but worth saying:

Father Pierre, why did you stay on in this colonial Campari-land, where the clink of glasses mingles with the murmur of a million mosquitoes, where waterfalls of whiskey wash away the worries of a world-weary whicker, where gin and tonics jingle in a gyroscopic jubilee of
something beginning with J?”

http://www.youtube.com/watch?v=Cn8Pua5rhj4

There is an Audionervosa forum

http://www.audionervosa.com/index.php

The state of the art with Audiophilia

http://www.theguardian.com/music/2015/nov/29/lost-in-music-the-world-of-obsessive-audiophilia

There is always someone a teency bit more obsessive

http://www.wsj.com/articles/a-gift-for-music-lovers-who-have-it-all-a-personal-utility-pole-1471189463?mod=e2tw

These are his LF horns en-route:

horns

New op-amp

http://idea2ic.com/FUN_DOCUMENTS/PolishOpAmp.pdf

Which kind of Hifi critic are you?

http://www.rfcafe.com/references/popular-electronics/hi-fi-may-1959-popular-electronics.htm

The original turbo-encabulator

turboenc

What an immersive, cutting-edge articulation on the state-of-the-art in audio literary achievement. Punching well above your weight class, your words removed an invisible veil and allowed everything to just snap into focus. Like turning on a light switch, it made a night and day difference providing the dynamic ambience necessary to result in an order-of-magnitude epiphany. Courtesy XEagleDriver

Vanilla Bass, chocolatey mids, and strawberry highs: neapolitan speakers give you the best flavors at every frequency. Courtesy ShadyJ

The article that prompted the above 2 paragraphs:

http://www.audioholics.com/editorials/literary-transgressions-of-the-audio-community

If you want immersive:

http://hdguru.com/stormaudio-brings-high-performance-immersive-audio-systems-to-u-s-market/

Encounter with Japanese electronic toilet

http://www.theregister.co.uk/2016/11/23/electronic_toilet_japan_defeats_reg_man/

Translate those French technical terms (read comments as well)

http://www.theregister.co.uk/2016/10/28/getting_your_tongue_around_foreign_techtalk_is_easier_than_you_think/

Why BS is no laughing matter

https://aeon.co/ideas/why-bullshit-is-no-laughing-matter

A mathematical BS detector!

https://aeon.co/essays/a-mathematical-bs-detector-can-boost-the-wisdom-of-crowds

The asymmetry of BS

https://twitter.com/krelnik/status/472046082135162881

Good rant by John Krutke on subjective testing

Evaluation Myths Busted

Apropos Rick Parfitt’s tribute courtesy XKCD

spinaltap

Charming period song from 1957 by Flanders and Swann

https://www.youtube.com/watch?v=7fJmmDkvQyc

Big bang Howards member and the robot arm
https://www.youtube.com/watch?v=r-VJLz65QhM

George Izzard O’Veerings house is up for sale

norelco

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