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William Sommerwerck
Guest
Fri Jan 20, 2012 4:39 am
Quote:
Being accurate also should mean it's stable. Compare the drift
rate to many other drifters.
Or the Platters. Or the Spinners.
josephkk
Guest
Fri Jan 20, 2012 6:27 am
On Thu, 19 Jan 2012 06:46:13 -0800 (PST), klem kedidelhopper
<captainvideo462009_at_gmail.com> wrote:
Quote:
On Jan 19, 7:45 am, John-Del <ohge...@aol.com> wrote:
On Jan 18, 9:29 am, klem kedidelhopper <captainvideo462...@gmail.com
wrote:
I
thought that music sounded reasonably good on the faulty channel of
the Teac until I looked at the meter while running tones.
Adjust the meter trimmer until is sounds better...
Sorry, couldn't resist.
John
Wow, I guess that I wasn't prepared for the steep price tag. It's been
awhile since I've aligned a tape machine. Lenny
Speaking of alignment tapes and such; i would like to find 1/4 inch open
reel (7") alignment tape. I am still way uncomfortable with dipping into
eprey/preypal. I dream of getting replacement headstacks for my old old
Ampex AX-300. Last i saw, a full set of six was about 1800 U$.
?-/
N_Cook
Guest
Fri Jan 20, 2012 9:46 am
gregz <zekor_at_comcast.net> wrote in message
news:722775611348698329.487881zekor-comcast.net_at_news.eternal-september.org..
..
Quote:
"N_Cook" <diverse_at_tcp.co.uk> wrote:
William Sommerwerck <grizzledgeezer_at_comcast.net> wrote in message
news:jf6foe$9m9$1_at_dont-email.me...
You can make one if you have a high-quality tape deck, Just record
some of the higher frequencies in the range of 4K and above, and use
that to align your subject tape heads. Should be no problem if you
have a audio generator and a good tape deck to make the master
alignment tape.
This reminds me of the joke about the town that set its public clock
when
the local fort fired its canon at noon. The fort, of course, fired the
canon
when the clock struck 12:00.
Then last year in the media they said that the National Physical
Laboratory,
Teddington, UK had the world's most accurate atomic clock, which begs
the
question .....
/
/
How do they know? without the paradox of a more accurate one to check it
against
Being accurate also should mean it's stable. Compare the drift rate to
many
other drifters.
Greg
I never did see the answer
I must try and get someone from the NPL for the Sci Caf talks I organise
http://www.divdev.fsnet.co.uk/scicaf.htm
I suspect the supraluminal neutrinos thing is something the American
military has not divulged concerning GPS relativity corrections and their
own alterations for allowing civilian use, and then wrong distance between
source and receiver.
After all the neutrino peak from that Large Magellanic Cloud supernova a few
earth years ago arrived at the same time as the light flux peak and that had
been travelling how many thousands of light years?
And the neutrinos from a super-nova, I suspect, are far more energetic than
anything the LHC could concoct.
Adrian C
Guest
Fri Jan 20, 2012 2:56 pm
On 17/01/2012 23:18, klem kedidelhopper wrote:
Quote:
Does anyone know where I can get an audio cassette alignment tape of
good quality at a reasonable price? I have heard that the ones sold by
places like MCM and Electronix and on Ebay are crap. Teac used to make
them but I don't have any further information as to if they still do
or the cost. Thanks, Lenny
Random thought.
Wouldn't lining up against a fixed head 'MP3 cassette adaptor' be pretty
spot on, a good quality one without a wobbly slanting head?
--
Adrian C
William Sommerwerck
Guest
Sat Jan 21, 2012 10:42 am
Quote:
Wouldn't lining up against a fixed head 'MP3 cassette adaptor' be
pretty spot on, a good quality one without a wobbly slanting head?
In a word... NO. An even better word is one you hear on "Antiques Road
Show" -- provenance.
klem kedidelhopper
Guest
Wed Feb 01, 2012 7:36 pm
On Jan 21, 4:42 am, "William Sommerwerck" <grizzledgee...@comcast.net>
wrote:
Quote:
Wouldn't lining up against a fixed head 'MP3 cassette adaptor' be
pretty spot on, a good quality one without a wobbly slanting head?
In a word... NO. An even better word is one you hear on "Antiques Road
Show" -- provenance.
When you do a playback head and equalization alignment you are setting
a standard for comparing your record head, (in a three head machine)
and it's associated electronics. If there is any guess work involved
in the playback alignment procedure then there can be no confidence in
anything else that you do. Lenny
Sofa Slug
Guest
Tue Feb 28, 2012 8:06 am
On 1/17/2012 3:18 PM, klem kedidelhopper wrote:
Quote:
Does anyone know where I can get an audio cassette alignment tape of
good quality at a reasonable price? I have heard that the ones sold
by places like MCM and Electronix and on Ebay are crap. Teac used to
make them but I don't have any further information as to if they
still do or the cost. Thanks, Lenny
The best cassette alignment test tapes were made by STL, but they are
long gone. Abex & Teac made decent ones (Abex made them for Teac), but I
think production has been discontinued (you could try Ebay for any of
the above - you might get lucky). AFAIK, the only company still
currently producing true "pro" quality cassette alignment tapes is JRF,
but they are very expensive.
Reasonably priced good quality new ones are still available from
Sony by special order, but you might have to buy more than one tape
depending on your needs (some frequency response test tapes can be use
to set level and azimuth as well, but I haven't tried this with Sony tapes):
<http://www.partstore.com/Part/Sony/Sony/891806043/New.aspx> [freq.
response]
<http://www.partstore.com/Part/Sony/Sony/781901611/New.aspx> [azimuth
adjust]
<http://www.partstore.com/Part/Sony/Sony/781901111/New.aspx> [level adjust]
You should verify these part numbers with Sony before ordering. Sony
might have other test tapes (speed adjust, Dolby cal, etc.) ...contact
them for part numbers and availability.
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