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<div dir="ltr"><font face="Tahoma" color="#000000" size="2">This post jogged a very foggy old memory. In about 1973 or 74 at NAB was there a one inch quad shown by an Asian manufacturer? My recall was that it had a head that looked like a very small Ampex quad.
When I went by the both I was surprised to see it, however there was nobody there at that time that could speak enough English to tell anything about it.</font></div>
<div dir="ltr"><font face="tahoma" size="2">Was there ever such a recorder was it a bad dream?</font></div>
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<div><font face="Tahoma" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'"></span><span style="COLOR: navy">
<p class="MsoNormal"><i><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial','sans-serif'">Wayne Watson</span></i><i><span style="COLOR: navy"></span></i></p>
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<font face="Tahoma" size="2"><b>From:</b> quadlist-bounces@quadvideotapegroup.com [quadlist-bounces@quadvideotapegroup.com] On Behalf Of Ted Langdell [ted@quadvideotapegroup.com]<br>
<b>Sent:</b> Sunday, February 27, 2011 3:23 PM<br>
<b>To:</b> Quad List<br>
<b>Subject:</b> [QuadList] NHK's research lab developed a Quad machine in 1958<br>
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<div>While poking around NHK's history site for a post on OldVTR's, I ran across this link, which shows a Japanese flatbed Quad developed in 1958 by NHK's "STRL"—its research lab.</div>
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<div><a href="http://www.nhk.or.jp/strl/aboutstrl/evolution-of-tv-en/p15col_4.html" target="_blank">http://www.nhk.or.jp/strl/aboutstrl/evolution-of-tv-en/p15col_4.html</a></div>
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<div>In the second picture, note what look like AVR-2s beyond the Sony BVH-machines.</div>
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<div>The Sony's look like BVH-1000/1100 series machines. Can anyone opine as to how to tell the differences in a photo that small?</div>
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VTR</h4>
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The first domestic VTR system in Japan was a 4-head VTR using 2-inch tape reels, test manufactured in 1958. Developments were later made on a frame converter and a slow-motion VTR system , with the aim of implementation for the Rome and Tokyo Olympics. In 1964,
NHK obtained a basic patent for a 1.5-head helical-scan VTR system. This system was later implemented on a 1-inch helical-scan VTR.</div>
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<td width="200"><img height="140" alt="2-inch VTR by STRL in 1958
A 4-head VTR using 2-inch magnetic tape - extremely expensive at the time of introduction." src="cid:BDD9E1BA-8320-426A-90C4-BC8AFCCC9BFD" width="200"></td>
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2-inch VTR by STRL in 1958<br>
A 4-head VTR using 2-inch magnetic tape - extremely expensive at the time of introduction.</div>
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<div align="left"><strong>Video tape: price and recording area per bit (square micrometer)</strong></div>
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<div align="left">2-inch (Ampex)</div>
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<div align="center">90 min.</div>
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<div align="right">1,000,000 yen</div>
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<div align="right">100ìm2/bit</div>
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<div align="left">1-inch (Sony Type C)</div>
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<div align="center">60 min.</div>
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<div align="right">120,000 yen</div>
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<div align="right">10ìm2/bit<br>
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<div align="left">1/2-inch (Matsushita D-3)</div>
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<div align="center">60 min.</div>
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<div align="right">20,000 yen</div>
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<div align="right">2ìm2/bit</div>
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<td width="200"><img height="179" alt="1- inch VTR in 1978
The analog VTR helical-scan system using a 1-inch open reel tape was called the Type C format. This 1-inch tape was smaller and cheaper than 2-inch tape. It later became the basis for the 1-inch HDTV analog VTR and the 1-inch HDTV digital VTR." src="cid:350A9494-A2A0-444A-9DDC-37D7F3D54D30" width="200"></td>
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1- inch VTR in 1978<br>
The analog VTR helical-scan system using a 1-inch open reel tape was called the Type C format. This 1-inch tape was smaller and cheaper than 2-inch tape. It later became the basis for the 1-inch HDTV analog VTR and the 1-inch HDTV digital VTR.</div>
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<td width="200"><img height="126" alt="D-3 VCR in 1991
A 1/2-inch small cassette digital VCR was introduced in 1991. It allowed repeated taping without deterioration of picture quality. This technology was succeeded by the HDTV digital VCR, the HD-D5." src="cid:FFDB29B7-EA34-442F-B298-FE44DFC43C1C" width="200"></td>
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D-3 VCR in 1991<br>
A 1/2-inch small cassette digital VCR was introduced in 1991. It allowed repeated taping without deterioration of picture quality. This technology was succeeded by the HDTV digital VCR, the HD-D5.</div>
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Ted<br>
<div><span class="Apple-style-span">
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<div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="FONT-SIZE: 12px"><br class="Apple-interchange-newline">
Ted Langdell</span></font></div>
<div><span class="Apple-style-span" style="FONT-SIZE: 12px">Secretary</span></div>
<div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="FONT-SIZE: 12px">Skype: <span class="Apple-tab-span" style="WHITE-SPACE: pre">
</span>TedLangdell</span></font></div>
<div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="FONT-SIZE: 12px">e-mail:<span class="Apple-tab-span" style="WHITE-SPACE: pre">
</span><a href="mailto:ted@quadvideotapegroup.com">ted@quadvideotapegroup.com</a></span></font></div>
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