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Topic: Capstan (tape recorder)

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	Capstan (tape recorder) - Wikipedia, the free encyclopedia
		Capstans are rotating spindles used to move recording tape through the mechanism of a tape recorder.
		The tape is threaded between the capstan and a rubber-covered wheel, called a "pinch roller", which presses against the capstan, thus pulling the tape.
		The alternative to capstan drive, simply driving the tape takeup reel (which was used on some cheap tape recorders), causes problems both with the speed difference between a full and empty reel and with speed variations as described.
	en.wikipedia.org /wiki/Capstan_(tape_recorder) (257 words)

	Tape recorder - Wikipedia, the free encyclopedia
		Current flowing in the coils of the electromagnet causes the magnetic material on the tape to align in a manner proportional to the original signal.
		Variations in tape speed cause flutter, which can be reduced by using dual capstans.
		While they are primarily used for sound recording, tape machines were also important for data storage before the advent of floppy disks and CDs, and are still used today, although primarily to provide an offline backup to hard disk drives.
	en.wikipedia.org /wiki/Tape_recorder (569 words)

	U.S. Patent: 5184258 - Helical scan magnetic tape recorder with capstan assisted vacuum threading - February 2, 1993
		Magnetic tape is initially removed from the cassette and moved to a tape vacuum loading position where it partially contacts the rotary head scanner, by a mechanical threading device.
		Tape 30 is withdrawn from the cassette 2 to a position shown by the tape strand 7B.
		Capstans 12 and 13 are also rotated, to take up the slack of tape 30 and to move the tape segments 22 and 23 tightly into position around the guiding elements 16 thru 21 recently brought into place.
	www.everypatent.com /comp/pat5184258.html (2279 words)

	Magnetic Recording Equipment (Site not responding. Last check: 2007-10-12)
		Both the capstan drive and the pressure pulley that forces the wire against it are of sufficient width to permit the wire to travel back and forth under the impetus of the level wind mechanism.
		It is designed for double-channel recording, one recording being made on the upper portion of the tape when the tape is moving in one direction, and the other recording being made on the lower portion of the tape when the tape moves in the reverse direction.
		Recordings may be made either from a crystal microphone, supplied with the unit, or from a phonograph pickup or the detector stage of a radio.
	history.acusd.edu /gen/recording/begun6.html (9170 words)

	Method and apparatus for controlling tape recorder - Patent 4302785
		A rigid demarcation is not made between the terms "tape recorder" and "tape transport" but in general, a tape transport includes the mechanism which handles and moves the tape, controls its speed and tensions it, whereas the recorder also includes the electronic recording and playback circuits.
		In conventional tape recorders, a signal of interest is recorded on the tape as the tape is moved by the tape transport from a supply reel to a takeup reel.
		The feedback input pulses of the capstan servo 386 are received from a pickup 387 associated with the tachometer 83 of the capstan motor, and they are coupled to the capstan servo 386 through a set of normally closed relay contacts 390 which are controlled by a relay coil 391.
	www.freepatentsonline.com /4302785.html (19304 words)

	Byer "77" Tape Recorder (Site not responding. Last check: 2007-10-12)
		In Decmember 1954 this tape recorder was officially released to the local market however, the advertising would indicate that field testing of the unit had been underway for approximately six months.
		The pinch roller was the only component in the standard tape deck that used any rubber as drive belts had been eliminated by using direct drive motors for the capstan and the spools.
		If the capstan motor is put in motion prior to playing or recording there is no speed up interval, only a small amount of instability in tape/head contact for a brief period when the tape motion commences.
	users.chariot.net.au /~debpeter/Byer_77.html (1026 words)

	Reel to Reel Tape Recorder Cleaning (Site not responding. Last check: 2007-10-12)
		It is a requirement when using a reel to reel tape recorder, that the heads and guides must be kept clean.
		The capstan is a motor driven metal shaft which drives the tape through the machine at a constant speed by means of the rubber pinch roller which presses up to grip the tape and so pull it past the heads.
		The author, Nigel Hunt, has over 40 years experience with reel to reel tape recorders and is webmaster and proprietor of www.taperecorder.co.uk.
	www.taperecorder.co.uk /cleaning.htm (903 words)

	HughLeCaine.com - Special Purpose Tape Recorder (1955-1967)
		By 1955, the first prototype of this new instrument was able to play six tapes simultaneously, changing the playback speed of each tape independently and recombining the resulting sound into a single recording.
		The tapes were played on a single capstan at the left of the instrument while the speeds were controlled by a three-octave keyboard on the right.
		Le Caine expanded a multi-track tape recorder he had built in his home studio, and in 1955 installed a variable speed control for the playback mechanism.
	www.hughlecaine.com /en/sptape.html (584 words)

	Article 16 (Site not responding. Last check: 2007-10-12)
		Record about 30 seconds to a minute of that tone onto the type of tape you use normally.
		Meaning either the Playback or the Record or the Bias (the current for the type of tape used) alignments are wrong or all of them.
		And last the record amplifiers are aligned to the three frequencies (1k, 10k and 100hz) so that your recorder will not change the sound of what's being recorded.
	members.aol.com /uniquenyc/key16.htm (1356 words)

	The Revox G36 tape recorder
		Tape reels can now be locked on to their respective shafts, enabling the REVOX to be operated vertically if required.
		In addition the record and replay heads are placed in screening cans with a face shield covering the front of the replay head when the machine is running.
		The tape is held against the heads by the use of pads but in the professional manner of arranging the heads in an arc.
	www.reeltoreel.de /worldwide/G36.htm (1152 words)

	Tape Recorder Alignment
		The pulses are recorded on the tape by hitting a button at the appropriate spots while listening to the program material.
		The capstan is literally the shaft of the capstan motor, and the cleaning fluid or even water dripping down into the motor can dry out the bearings and wreck the motor over time.
		The type of tape is also your choice, however remember to re-bias the machine whenever you choose to record on a different type or brand of tape.
	www.churchsoundcheck.com /tra.html (5302 words)

	Video History Project: Resources - Tool Description
		The AV-3650 is a compact, portable EIAJ type 1 video tape recorder with a capstan servo electron-ics editing system, as well as many other special features.
		The playback signal from the recorded tape is locked in to the incoming sync or composite signal by the capstan servo system so that the editing may be accomplished without disturbing the flow of vertical sync.
		A capstan servo mechanism is employed for increased stability.
	www.experimentaltvcenter.org /history/tools/ttool.php3?id=47&page=1 (518 words)

	The Revox F36 tape recorder
		Commercial manufacture of tape recorders in Europe started in the late forties and at this time Willi Studer first turned his attention to producing a tape recorder for the amateur in place of the wire recorders that were current at that time.
		The mixing arrangements providing one pre-amplifier not in use for recording to be coupled with the other pre-amplifier through which the recording is being made with neither gain control acting as a master.
		The huge capstan motor is coupled to the dynamically balanced flywheel by means of a special anti-vibration rubber disc.
	www.reeltoreel.de /worldwide/F36.htm (907 words)

	Recorder Tape - Erudition Online
		Aubrey, the instrument was able to play six tapes simultaneously, changing the playback speed of each tape independently and recombining the resulting sound into a single or multiple tone pattern.
		Recorder offers up to minutes of voice-activated, crystal-clear, digital record-time without use of magnetic tape - audio is stored in each or box of tapes.
		Comes with lapel clip, saddle for mounting on a single capstan at the keyboard of the instrument was able to play six tapes simultaneously, changing the playback speed of each tape independently and recombining the resulting sound into a single capstan at the left of the instrument while the speeds were controlled by a.
	www.lcunc.org /recorder-tape/recorder-tape.html (603 words)

	EXERCISE 2 - CASSETTE TAPE RECORDERS (Site not responding. Last check: 2007-10-12)
		To reinforce and extend your "textbook" knowledge of tape and tape recorders.
		During disassembly of the tape recorder, your group should identify one aspect of the design of the tape recorder that you wish to investigate in more detail.
		If your tape recorder still works, consider removing one of the heads and trying to play or record.
	www.ee.washington.edu /conselec/CE/kuhn/labs/lab2.htm (833 words)

	Extinct Video Tape Recorder Connectors
		When playing back a tape, audio and video outputs are sent to the monitor while video and audio inputs from the receiver are ignored by the VTR.
		An open switch is pause mode, when the switch is grounded the capstan roller is engaged and recording is in progress.
		Since the sync is generated for the camera, and used internally, by the VTR, it is not possible to record external composite video on this recorder.
	www.labguysworld.com /Connectors.htm (4018 words)

	Ricard's Butoba clockwork tape recorder page (Site not responding. Last check: 2007-10-12)
		Normally large capstans are to be avoided because of the difficulty in manufacturing such a large rotating component with the precision required in a machine for playing audio.
		The "Export" is an example of a typical Butoba spring-drive tape recorder with an all-tube amplifier.
		Heavier governor weights, requiring slower speed to maintain regulation, a smaller capstan diameter, and most likely changes to the mainsprings as well, give this recorder a playing time (per wind-up) of 22 minutes or more, and the higher speed which is 3 3/4.
	www.butoba.net /homepage/federwerk.html (1527 words)

	Byer "77" Tape Recorder Maintenance (Site not responding. Last check: 2007-10-12)
		You can determine if the capstan motor is the cause of the problem by operating the deck in a quiet location.
		Looking at the rear of the capstan motor you will see a screw head which approximately 10mm in diameter, this is actually a grub screw with an outer locking ring.
		The grub screw is the capstan height adjustment, you should make a note of the position of the top of the capstan before you make any adjustments (hint, use the pinch roller as a reference).
	users.chariot.net.au /~debpeter/Maintenance_77_MkI.html (668 words)

	TAPE PLAYERS_reel to Reel_Webcor_Akai_Sony_Silvertone_Roberts
		Capstan sleeves/ bushing for Roberts or Akai reel to reel
		Roberts Model 997, 3 speed, reel to reel, all tube, stereo tape recorder w/15 ips.
		Capstan sleeves for Roberts or Akai reel to reel tape recorders
	www.grandcanyontuberadio.com /tape/tape.html (64 words)

	Obsolete Media - Tape Deck General Information (Site not responding. Last check: 2007-10-12)
		How can you replace the capstan belt on a Teax X series deck?
		This topic contains general information about tape decks.
		To comment on an article published here, click on the 'Post Comment' icon at the bottom of the article.
	www.obsoletemedia.com /geeklog/public_html/index.php?topic=tdinfo (267 words)

	Reel to Reel Tape Recorder Head Cleaning (Site not responding. Last check: 2007-10-12)
		The author, Nigel Hunt, has over 40 years experience with reel to reel tape recorders and is webmaster and proprietor of www.taperecorder.co.uk Reproduction of this article is permitted provided this statement and hyperlinks are reproduced in full and the article is not modified in any way.
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