I was a recording operator in the early 80s using all of these machines and still a colourist today! This is a great video!
@pswooley4 жыл бұрын
I used this gear in the late ‘80’s. This is one of the best videos explaining the theory of operation I have ever seen. Good work.
@GregorPQ2 жыл бұрын
I am currently getting a Rank Cintel machine to work. Do you happen to know some old engineers who could help?
@TaufiqMarhaban5 жыл бұрын
Who ever made these video is a genius, clear and scientific yet understandable
@lambertax3 жыл бұрын
Not very scientific using the imperial measurement system ;(
@simonbone Жыл бұрын
@@lambertax Yep, that was an annoying thing in an otherwise great film. Especially since he's Canadian.
@HughWaters10 ай бұрын
I still have a Quad head assembly from one of our old VR2000 machines, and a length of tape with the magnetic tracks made visible with magnetic fluid and protected with varnish. Did it almost 40 years ago and the tracks are still visible.
@TheLawrenceWade4 жыл бұрын
That's just absolutely great. It's a great introduction to why videotape was such an achievement, and that the $99 VCR from Wal*Mart is just short of turning water into wine. And what makes it cooler is the VHS head switch artifact at the bottom of the screen. I love KZbin but I miss videotape. :) I got to run production Quads in a TV station. I remember sitting on night shift in Master Control, reading a Stephen King novel, just enjoying the sound of one of the machines running happily as it played that night's programming.
@coffeehigh4209 жыл бұрын
the music makes me feel like i'm watching a video from some state park where they show videos in they're local small "theatre" in between the time you are looking around the museum of indian artifacts cased in glass.
@danalee10009 жыл бұрын
coffeehigh420 Lol. I know. It was 1995... :)
@jaspervanderblint79868 жыл бұрын
+Dana Lee How!
@MaroonCorey Жыл бұрын
@@danalee1000 that flute on loop is killing me
@manonthedollarАй бұрын
Used to work in a taperoom at a movie studio. Quadruplex was my absolute favorite to work with.
@jkmac625 Жыл бұрын
The Ampex AVR-2. I was trained how to use one of these in 1999 to help with some 2 inch archiving to D-Beta. I'd been using the 1 inch format since the early 90's mainly on the Ampex VPR-2B.
@TysonNeil Жыл бұрын
I did some of that around the same time.
@UNOwen1 Жыл бұрын
+Dana Lee; I'm a lifelong (at-heart) techno-geek, and stuff like this always fascinates me. I was very impressed by this, because usually, in similar videos which are explaining a bit of techno-history, they keep the story simple, whereas you dig down to the root, and explain the 'minutæ', so to say. There's nothing inherently 'bad' about this type of documentary, but, it oft-times leaves those of us of us who want to understand these things with just the barest of facts, feeling 'half-full'.
@xmttrman10 жыл бұрын
The Ampex AVR-2 that is featured was a real workhorse. The station I was at had two... they were the last quad R-R recorders we used until the 1" 'C' format machines totally replaced them. We did continue to run the Ampex 2" cart machines until replaced by the Sony LMS D-2 system.
@kingbee15009 жыл бұрын
+xmttrman The Ampex carts...you mean the ACR-25 mono/ACR-225 stereo, right?
@mikecumbo7531 Жыл бұрын
@@kingbee1500the 225 was a D2 modern design
@Fazemod Жыл бұрын
An excellent instructional video. Nice job! My first introduction to VTR technology was repairing Sony Broadcast Umatic machines, much smaller but the same principles in use of course.
@MikinessAnalog4 жыл бұрын
Even in the era of television's birth in the late 20's there were issues with synchronization. Timing between the source (camera) and the mechanical television. It still amazes me the maths involved and the brains it took to figure out a way to record (document) it. I believe some of the first 20 - 30 line broadcasts were actually recorded on record using modified record lathes then transmitted over the air (radio) as unintelligible audio noise were some people connected their radios to their lathes.
@2packs4sure9 жыл бұрын
Man, i love that music. I feel like i'm on safari with Marlin Perkins and Jonny Quest. Of course Jim is busy wrestling an Anacona.
@SnepperStepTV9 ай бұрын
Excellent production. I'm working with these machines now
@static-san Жыл бұрын
Absolutely fascinating! First time I'd heard of how they got from a composite video signal to a magnetic recording in Quad! Using a modulation signal was genius. This video also neatly fills in a gap in an Usborne kids book I have from the 1980s which talks all about TV production. There is a page that describes (too briefly) the Quad system including showing the rotating head, but next it describes the helical scan approach that VHS uses. I didn't realize until very recently that it just didn't explain Quad at all well!
@manusudha42692 ай бұрын
Great video .Best explanation. Thank you .
@Geebax25 жыл бұрын
Unfortunately there is an error in the with relation to Amtec. It is not Ampex Tape Error Corrector, it is Ampex Time Element Compensator.
@stephenbeecher75453 жыл бұрын
I said the same thing to myself while watching this.
@Odessia-ij5ys3 жыл бұрын
Technology from video recording tape to video discs great leap ahead
@glynnetolar44234 жыл бұрын
I sure would have like to have seen the next section(s) of this video.
@tekvax7 жыл бұрын
and I even know exactly where you shot that video! sadly those machines and that audio board are LONG gone now!
@ihartmacz3 жыл бұрын
What an excellent video! Thank you very much
@jeantetreault1324 жыл бұрын
Very complex technology!
@marktubeie0710 жыл бұрын
Loved this - ah, memories! Gotta love the AVR-2s...
@crappyatlife5 ай бұрын
Great video very engaging
@robfriedrich28226 жыл бұрын
One amazing thing, tape recorders were introduced in the USA about 10 years before the first video recorder.
@datacreed8 жыл бұрын
well done - great history on recording heads. :)
@eddievhfan19847 жыл бұрын
So on the scale of analog TV signals, magnetic tape is effectively a high-pass filter up until the record/repro head's gap creates a hard stop in the tape bandwidth?
@MancaveEffects4 жыл бұрын
This video should have way more views.... shame on KZbin nowerdays.....
@kirknelson1568 жыл бұрын
very interesting and well presented :)
@Tomsonic413 жыл бұрын
The BBC experimented with recording video in a linear format for their 405-line system. In this case, the tape had to pass the heads at 16.7ft per second! It was very short-lived, however.
@jethro1963 Жыл бұрын
There is a vid on KZbin called - 1958: Introducing VERA - Britain's First Videotape Recorder
@javierjimenez7989 жыл бұрын
I love solid state analog devices
@bobskie3218 жыл бұрын
I remember during my childhood years in early 1970s our B&W TV not only has a V-hold but also the H-hold as well. We hardly touch the V-hold but the H-hold needs occasional adjustment. The picture falls on its side and we adjust the H-hold and after few seconds it falls again but on the opposite side and we adjust the H-hold back. I presume they were using quadruplex. In late 1970s we don't touch the H-hold anymore. I presume our local TV stations are already using helical scan.
@danalee10008 жыл бұрын
+bobskie321 That's more a factor of the old analog television standard, than what type of VTR was playing back the material at the station, since all stations' outputs would go through a processing amplifier (proc amp) to stabilize the picture before transmission. TVs back then were prone to falling out of H sync with weaker TV signals, especially. We all had to do what you did - how I remember!
@webbox10010 жыл бұрын
This is awesome, Dana.
@SirKenchalot3 жыл бұрын
Great video, very interesting. Grea to see some actual math in a vid like this and wow they could make a head of 0.01mm back then?
@erwintimmerman64664 жыл бұрын
Looking at this in 2020... Still very interesting. Funny how the wide tape allowed vertical tracks instead of the oblique tracks used by the later equipment. Also nice to see all the different techniques used split over all the modules. Makes it a lot more understandable.
@Thermionman9 жыл бұрын
.very cool and interesting!
@Eli_Santin3 жыл бұрын
Thanks for putting this up! Did you use an Amiga for the 3D visuals?
@Odessia-ij5ys3 жыл бұрын
Had only the fortune to see u-matic system in use ...... video recording on reel to reel only from vintage film footage
@TinLeadHammer Жыл бұрын
"Cycles per second" in 1995? Hertz has been established in 1935 and adopted by CGPM in 1960. Wikipedia says that "cycles per second" was largely replaced by "Hertz" by the 1970s. Ah, at 2-minute mark I see "Hz" onscreen without explaining that it is the same as cycles per second. The formula that follows equates recording time to tape length, this is just bad math syntax, you would be marked down on your high school test. The same math silliness continues. Then you pronounce "Hertz" without introducing this unit of measure. In your playback level vs. frequency story you did not mention that the level starts to drop after a certain point. "Expressed in dB as we do in audio" - dB is just a power ratio that has no direct relation to audio. Small errors notwithstanding, this was fun to watch.
@robfriedrich28226 жыл бұрын
I thought, they introduced FM for video signals with storing video signal onto optical media.
@honestguy77643 жыл бұрын
yes, laserdiscs were in fm at first, until digital audio was implemented. later, one of the fm channel were used to store modulated dolby digital
@michaelmcgee8543 Жыл бұрын
interesting!
@tekvax0110 жыл бұрын
what was the bed used?
@DelilahThePig7 жыл бұрын
Hi8 was a decent format for projects like this. I never quite liked DV. It always seemed to want to go yellow and throw out color information.
@johnpower68 Жыл бұрын
Hi8 was a toy format and not professional
@stephenbeecher75453 жыл бұрын
Tach phase!
@srfurley3 жыл бұрын
Is that a AVR2?
@colourist.3 жыл бұрын
Yep !
@marathonchartsradio8 жыл бұрын
What is this music?
@ArtStoneUS3 жыл бұрын
For people with hearing loss, that washes out of the voice audio. I can barely understand what he's saying
@nztv85895 жыл бұрын
Looks interesting but can't hear/understand a word being said!
@leeshepherd65123 жыл бұрын
Fantastic video ruined with that awful repeating music.
@alijanlondon8 жыл бұрын
totally ruined by the intrusive and unnecessary music
@paulwalker62974 ай бұрын
Please lose the annoying and unnecessary muzak !
@louco369578 жыл бұрын
man i really HATE that stupid measurement system (inches, feets etc.). Why don't you use a decent system of units like metric? Use METER for distance, KILOGRAM for mass, CELSIUS for temperature and so on. Think Metric!!!!!!!!!!
@Tmanaz4806 жыл бұрын
Louco ... Relax mate. Why don't you pop down to you local pub for a nice 568 ml.
@emilpater28656 жыл бұрын
A "half liter" sounds better mate
@johnhoward30425 жыл бұрын
Metric is the work of the devil!
@Patrick_AUBRY3 жыл бұрын
I'm Canadian, I use both depending of the subject 🤣
@AlexEssex83 жыл бұрын
We use both imperial and metric systems in England (although probably imperial a little more…)