The purpose of achieving target for implementation of Metrication shall remain defeated/deferred till HARD CONVERSION to soft adjustments is NOT granted OKay, like: 12", 10" and 7" records be considered/advertised 302 mm, 251 mm and 175 mm respectively although these continue to be 301.625 mm. 10" is 250.825 mm. 7" is 174.625 mm; for pipelining the NEW manufacturing process to adopt rationalisation.
Steps in inrement of 1/8th inch is a unit that was called SOOT, in India, and used where 'inches prevail'.
Yes, much depend on industrial houses to accept promotion of the METRIC usage.
Brij Bhushan Vij <[EMAIL PROTECTED]>
20040102/11:34 AM(IST)
Aa Nau Bhadra Kritvo Yantu Vishwatah -Rg Veda.
*****The New Calendar Rhyme*****
Thirty days in July, September:
April, June, November, December;
All the rest have thirty-one; accepting February alone:
Which hath but twenty-nine, to be (in) fine;
Till leap year gives the whole week READY:
Is it not time to MODIFY or change to make it perennial, Oh Daddy!And make the calendar work with Leap Week Rule! ***** ***** ***** *****
From: "Bill Potts" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: "U.S. Metric Association" <[EMAIL PROTECTED]> Subject: [USMA:28095] RE: Phonograph records Date: Thu, 1 Jan 2004 21:25:00 -0800
The Recording Industry Association of America (RIAA) has a standard. It's at
http://www.aardvarkmastering.com/riaa.htm.
Not surprisingly, it's not metric. However, so-called 12", 10" and 7" records are all slightly smaller than their usual designations would indicate. The nominal diameter of a 12" record works out to be 301.625 mm. 10" is 250.825 mm. 7" is 174.625 mm.
Interestingly, nominal diameter is always 1/8" less than advertised diameter, with a tolerance in the positive direction only of 1/32" (0.794 mm).
Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf
Of Chimpsarecute
Sent: Thursday, January 01, 2004 21:11
To: U.S. Metric Association
Subject: [USMA:28094] Phonographic records
A discussion came up recently about LPs. The other person insisted that a
12 inch LP actually measures 12 inches. So I got out a few of my old ones
and measured them with calipers. I found that the American ones I have all
measure in at 302 mm. Not the almost 305 mm need to be 12 inches.
I also have some German records and they measure exactly 300 mm. When I place a German one on top of an American one, I can see the German one is slightly smaller and if I run my finger around the edge of the two I can feel the difference.
I also measured some old 78s and found them to be 250 mm and the old 45s to be 173 mm.
I doubt there ever was an ISO or similar standard for records. I tried researching it on the net, but nothing came up. I saw constant references to the 12 inches used as a trade name, but no standard defining the 12 inches to be written in stone.
Can anyone here who has old records do a quick check on theirs to see if
my measurements agree with yours? Does anyone have an actual 305 mm record?
Are all of your records consistant in diameter?
It would be real nice if someone from the UK, Canada, Australia, the EU etc would measure theirs and see if they are a real 12 inches or not. The same for the 45s and 78s too.
And please don't tell me that records are obsolete and it doesn't matter what size they were.
Thanks,
Euric
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