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Old 29th March 2011, 05:59 AM   #1
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Default A DIY acronym Data-base/'Sticky' thread?

An idea perhaps for a "sticky" thread.................How about an acronym data-base, file base for the DIY community. I ran across an acronym just now.....can't seem to nail it down....A BIB?? Each acronym could be broken down according to its point of interest....'Full-rangers, Tubes, Solid-state" each according to its application. This would make things a lot easier, helpful and we would all learn more.

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Old 29th March 2011, 06:54 AM   #2
sklimek is offline sklimek  United States
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Sounds like a good idea to me. Your BIB made me think of ‘PRaT’ I would see it from time to time here at diyAudio but was clueless. Found it at TNT-audio after a google search –


1. Pace, Rhythm and Timing
2. could have been: Pitch, Rhythm and Timing
3. could also have been: Pace, Rhythm and Tune
4. but never Pitch Rhythm and Tune, to my knowledge

PRaT pace pitch rhythm timing tunes PRaT - [English]
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Old 29th March 2011, 07:12 AM   #3
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Start one, we can make it sticky. If we don't watch out this is it

DIY = Do It Yourself
BIB = Bigger Is Better. Tapped Conical Pipe/Horn, Usually associated with FR
FR = Full Range. 1-way speaker systems
FR = Frequency Response
ML-TL = Mass Loaded Transmission Line

low bass: 20-40Hz
midbass: 40-80Hz
upper bass: 80-160 Hz
lower mid: 160-320Hz
mids: 320-1280 Hz (2 octaves)
upper mids: 1250-2.5k
lower treble: 2.5k-5k
mid treble: 5000-10k
upper treble:10-20k
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Old 29th March 2011, 08:28 AM   #4
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wow Dave those figures for bass are very different to what I had in my head! I often see 5" or 6" drivers reffered to as MidBass units. I'd always thought midbass was in the 100-800 Hz range, and mids in the 800- 2000 range.... Live and learn!

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Old 29th March 2011, 08:38 AM   #5
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Human voice fundementals are something like 80-800.

community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
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Old 29th March 2011, 11:39 AM   #6
DF96 is offline DF96  England
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IC=integrated circuit, IC=interconnect cable
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Old 29th March 2011, 12:08 PM   #7
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I find myself explaining these ones , over and over...

OPS - output stage
IPS - input stage
OP - output
VAS/VS - voltage stage or voltage amplification stage

CM - current mirror
CSS - constant current source

TMC - transitional miller compensation
CMC - conventional miller compensation
TPC - two-pole compensation

EF (2/3) emitter follower (2-stage or triple)
PS - power supply

I'm sure there are others. (GEB = golden ear brigade )

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Old 29th March 2011, 12:47 PM   #8
DF96 is offline DF96  England
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Some of those you have to keep explaining because they are not widely used. For example, OPS and IPS - I have never seen those used. We need to be careful not to invent new ones all the time. There may be cultural differences here: some people like acronyms (to save typing) so use lots including non-standard or newly invented ones, others prefer clarity so use just a few well-known ones and spell out everything else in full.
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Old 29th March 2011, 05:06 PM   #9
JoeDJ is offline JoeDJ  United States
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One thing even someone who is fairly ignorant like me has to frequently explain to friends, particulary as they pertain to (cheap) surge protectors is:

MOV - metal oxide varistor
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Old 29th March 2011, 05:26 PM   #10
Ron E is offline Ron E  United States
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Why not make a wiki page?
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan
Armaments, universal debt, and planned obsolescence--those are the three pillars of Western prosperity. —Aldous Huxley
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