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<DIV><FONT size=2 face=Arial>I had two 7800's that I took care of on the USS
Kearsarge CVS-33 Carrier. They were for the ships entertainment TV system. My
rate was actually Gun Fire Control Electronics Technician (FT), but the little
third class electronics tech that was supposed to work on the 7800's to keep'em
going, was in way over his head.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I had the 6PM to 8PM disc-jockey slot in our KEAR
radio DJ booth, so I was well known on the ship.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I needed some transistors for the Ampex machines
and was told that I could get some much more reliable parts by taking'em out of
a Sono-Buoy the ones that our S2F sub-trackers carried.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I went down into the hangar bay in the dark one
night and went around behind the Sono-Buoy pod on one of the planes and ejected
one out, and the Ships XO came by and caught me. He said Spears...is that
you?...where you goin' with that Sono-Buoy?...and I said Commander...you wanna'
watch Dean Martin tomorrow night? I need some some transistors for one of our
videotape recorders.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Take whatever you need son !</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=wcarpen107@yahoo.com href="mailto:wcarpen107@yahoo.com">Bill
Carpenter</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=quadlist@quadvideotapegroup.com
href="mailto:quadlist@quadvideotapegroup.com">quadlist@quadvideotapegroup.com</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, February 14, 2012 10:14
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [QuadList] Ampex XVR-7500
details</DIV>
<DIV><BR></DIV>
<DIV
style="BACKGROUND-COLOR: #fff; FONT-FAMILY: tahoma, new york, times, serif; COLOR: #000; FONT-SIZE: 14pt"><BR>
<DIV style="FONT-FAMILY: tahoma, new york, times, serif; FONT-SIZE: 14pt">
<DIV
style="FONT-FAMILY: times new roman, new york, times, serif; FONT-SIZE: 12pt">
<DIV id=yiv2050353668>
<DIV>
<DIV
style="BACKGROUND-COLOR: #fff; FONT-FAMILY: tahoma, new york, times, serif; COLOR: #000; FONT-SIZE: 14pt">
<DIV><SPAN>Hi Chris and everyone!</SPAN></DIV>
<DIV><BR><SPAN></SPAN></DIV>
<DIV><SPAN>Yes, the VR-7000 type products could have been much better with
torque motors. <BR></SPAN></DIV>
<DIV><SPAN>When I started with Ampex in Nov of 1965, I had six years of design
experience with Govt. magnetic recorders and before that I had three years of
running my own wedding recording business, "Tru-Sound Recording" using an
early three motor audio recorder, made by TDC, which had very low W&F and
fast winding. </SPAN></DIV>
<DIV><SPAN><BR></SPAN></DIV>
<DIV><SPAN>The VR-7800 was the first machine that I worked on from the start
w/ Barry Guislinger as project engineer and I designed all the controls,
mechanical interfaces and the i/o areas. <BR></SPAN></DIV>
<DIV><SPAN>When we went into production in 1968 (Barry had moved back to Ca,
to work on the AVR-1) I moved up to project engineer. <BR></SPAN></DIV>
<DIV><SPAN><BR></SPAN></DIV>
<DIV><SPAN>The 7800 had five DC motors, scanner, capstan, supply & takeup,
and slo-motion (this was a small Globe motor w/ a teflon felt drag system for
stable low speeds). <BR></SPAN></DIV>
<DIV><SPAN>This was the first capstan servoed machine, the first use of
Yaskwah printed circuit motors, and the first tension servoed machine and the
first editing machine.</SPAN></DIV>
<DIV><SPAN>Another interesting point was that the "Assemble" mode was fully
servo locked, unlike all previous Quad's.</SPAN></DIV>
<DIV><SPAN><BR></SPAN></DIV>
<DIV><SPAN>IVC had great tape handling, but in a head to head shootout, the
IVC-960 vs. VR-7800 for the EBU (European Broadcast Union) in Paris in 1969,
we won hands down on the signal handling quality in both PAL and
SECAM.<BR><BR>I had spent 2 weeks in the summer of 1968 in Paris, at the ORTF
labs, since they bought about 15, VR-7800's, and I went to tweak the tension
servo's since the factory setup caused some problems in Secam. <BR>It worked
well and that caused the shootout, the next year.<BR></SPAN></DIV>
<DIV> </DIV>
<DIV>Bye for now, Bill & Gewyn & Ginger (whoof...whoof)<BR></DIV>
<DIV style="FONT-FAMILY: tahoma, new york, times, serif; FONT-SIZE: 14pt">
<DIV
style="FONT-FAMILY: times new roman, new york, times, serif; FONT-SIZE: 12pt">
<DIV dir=ltr><FONT size=2 face=Arial>
<HR SIZE=1>
<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> "Chill315@aol.com"
<Chill315@aol.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B>
wcarpen107@yahoo.com <BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B>
Tuesday, February 14, 2012 5:06 AM<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [QuadList] Ampex XVR-7500
details<BR></FONT></DIV><BR>
<DIV id=yiv2050353668>
<DIV><FONT id=yiv2050353668role_document color=#000000 size=2 face=Arial>
<DIV>Bill</DIV>
<DIV> </DIV>
<DIV>Thank you for the input. I remember a number of them at the
University of Michigan Hospital. They had a VR-660 as the first video
recorder. Then they went to the XVR-7500. Later to a 5000 series
machine. The signal to noise was not an issue as the imaging device was
an orthicon. </DIV>
<DIV> </DIV>
<DIV>The biggest issue was the interchange. The moveable gates just did
not keep the mechanical tolerances. The other issue was the rubber belt
used to drive the head. It did not last that long. </DIV>
<DIV> </DIV>
<DIV>I always was of the opinion that if Ampex had used a mechanical layout
like IVC with their electronics, it would have worked very nicely.</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV>
<DIV>WA8IGN</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 2/14/2012 1:46:32 A.M. Eastern Standard Time,
wcarpen107@yahoo.com writes:</DIV>
<BLOCKQUOTE
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<DIV
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<DIV><SPAN>Hi Don, and everyone!</SPAN></DIV>
<DIV><BR><SPAN></SPAN></DIV>
<DIV><SPAN>The Ampex XVR-7500 was 7500 with a wider output filter (trade S/N
for increased BW for B & W xray's) which was built for X-ray customers
like G.E., Westinghouse and such. <BR></SPAN></DIV>
<DIV><SPAN>Mainly used in Heart Catherization Lab procedures, and we also
made a 875 line version for some folks with a slightly different capstan
speed to provide slow motion sync pulse line-up with the different line
rate. </SPAN></DIV>
<DIV><SPAN>More 45 year old details if needed.<BR></SPAN></DIV>
<DIV> </DIV>
<DIV>Bye for now, Bill & Gewyn & Ginger (whoof...whoof)<BR></DIV>
<DIV style="FONT-FAMILY: tahoma, new york, times, serif; FONT-SIZE: 14pt">
<DIV
style="FONT-FAMILY: times new roman, new york, times, serif; FONT-SIZE: 12pt">
<DIV dir=ltr><FONT size=2 face=Arial>
<HR SIZE=1>
<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Don Norwood
<dwnorwood@embarqmail.com><BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B> Quad List
<quadlist@quadvideotapegroup.com> <BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Sunday, February 12, 2012 5:17
PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [QuadList]
OT: Ampex 7500 on ebay<BR></FONT></DIV><BR>
<DIV id=yiv2050353668>
<STYLE></STYLE>
<DIV>
<DIV>Hi Dave:</DIV>
<DIV> </DIV>
<DIV>You'll note that this is an XVR version of the 7500. Parts of the
description do not make sense to me, and maybe this is different from the
XVR-7500 that I am familiar with, but if it is a conventional XVR, it's not
really compatible with standard Type-A tapes recorded on a regular VR-7500
or other Type-A machine. Also, even if it really will play standard
tapes, a compatible TBC (wide band direct color, not heterodyne) will be
required since this does not include the color pilot processor that is used
with the VR-7500C.</DIV>
<DIV> </DIV>
<DIV>Don Norwood<BR>Digitrak Communications, Inc.<BR><A
title=http://www.digitrakcom.com/ href="http://www.digitrakcom.com/"
rel=nofollow target=_blank>www.digitrakcom.com</A></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="FONT: 10pt arial; BACKGROUND: #e4e4e4"><B>From:</B> <A
title=mailto:dave@zfx.com href="mailto:dave@zfx.com" rel=nofollow
target=_blank ymailto="mailto:dave@zfx.com">Dave Sieg</A> </DIV>
<DIV><BR></DIV>There is an Ampex 7500 on ebay if anybody's interested.
<DIV>It looks like its in decent shape.</DIV>
<DIV>I owned one for many years, have no tapes I need to play, </DIV>
<DIV>and don't need to own one again, no matter how pristeen it
is...</DIV></BLOCKQUOTE></DIV></DIV><BR>Please trim posts to relevant info
when replying.<BR><BR>Change subject to reflect thread direction.
Thanks.<BR>_______________________________________________<BR><BR>Send
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subscribe, unsubscribe and digest options are
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<P>
<HR>
<P></P>Please trim posts to relevant info when replying.<BR><BR>Change subject
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