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Product prices are viewable
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Shop Otari Products |
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T/REDS™ - 2" Universal
Replacement capstan and idler rollers for all OTARI MTR-90's & MTR-100 |
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| These are unquestionably the best looking (see below), best performing aftermarket rollers you can buy. Extremely efficient RED thermoplastic elastomer, our rollers are supplied with special soft-tip set screws which allow them to be used with all MTR-90 series (mkI,II,III) and MTR-100 machines.
Additionally, T/REDS may be safely rotated on the capstan shaft to minimize rotational error and optimize your machine's flutter performance. (wow & flutter analyzer required)
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| __Photographs courtesy of Simon Buvoli, Camorino, Switzerland |
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Promotional PDF
T/REDS installation PDF
MTR-90 Set-Up PDF
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Black/REDS™ 1"
Recommended for all DTR-900 & Mitsubishi 1" digital recorders.
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| High performance designed to take full advantage of the higher wind speeds available on the fast winding OTARI & Mitsubishi digital machines. |
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| Very limited quantity - PRICE REDUCED |
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Download PDF |
Quartz/Pyrex Lifter Sleeves
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| A pair of centerless ground & polished quartz/pyrex sleeves for your MTR-90. Harder than chrome steel means longer life and less wear and tear on your tapes. Guaranteed accurate high speed tracking.
Easy install with provided instructions.
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Replacement Swingarm Tension Springs
Replace old, fatigued springs on your MTR-90. |
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| Set optimum, tension and keep it that way. Quality tempered music wire means longer spring life and stability. |
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Sold as a package of (2)
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Download PDF |
Motor Driver Power Transistors
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| Replacement power supply and motor driver amplifiers. High voltage and current handling. Our house part numbers - manufactured by ON Semiconductor. |
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p/n: XB2552P (PNP rep. 2SB552)
p/n: XD2442N (NPN rep. 2SD552)
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Computer grade electrolytic capacitors for the MTR-90 power supply
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| Six direct replacement Computer Grade electrolytic capacitors. Metric sized with just enough elevated capacitance and voltage rating for longer life and improved performance.
Made in the USA by United Chemi-Con.
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| Note: some values no longer available - please contact us for information |
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Capstan Motor Alignment Collar
The cure for MTR-90 high frequency instability. |
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| The Alignment Collar locks into the transport's deck plate. Strengthens the motor mounting and makes the capstan azimuth & zenith adjustable. Easy installation w/ no deck modification. |
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| Try it for 30 days. If you don't agree it's amazing, send it back for a full refund. |
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"Capstan Alignment Collars for the MTR90's work great,
never thought I could achieve such a perfect tape path! Thanks!"
Greg Snow
Fredonia University, NY
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"After spending countless hours and over $2,500.00, with a certain company in San Francisco, our MTR-90's tape path was still far from perfect and I was frustrated. I discovered the Capstan Alignment Collar at the PrecisionMotorWorks website and for a mere $375.00, I purchased and installed the CAC and "TONE DANCE" is gone.
Finally a company made sense... A must have for "the perfectionist".
Sheldon Zaharko
The Factory Studios, B.C., Canada
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Servo-Disc Motor Kit for Otari & Mitsubishi professional recorders
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| Heavy duty, USA made, direct replacement motor kit for the O.E.M. Yaskawa disc motor (Japan). Superior current handling capacity. Fits all MTR-90 /100 / DTR-900 & Mitsubishi Capstan motors. |
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Head Shield Motors
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| Direct replacement Head Shield Motors for the OTARI MTR-90. Easy install with instructions provided. |
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| Very limited quantity |
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Download PDF |
Unitized HardArms™
Don't throw money away on less than the best! |
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| Swingarms built right and they won't cost you a (swing)arm and a leg! Engineered for strength, these are as close to being a single, solid piece of metal as is possible. Straightness is guaranteed within .003" end to end in X & Y planes. |
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| Back in stock with plenty available! |
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Download PDF |
EMC Music Mastering Heads 2" - 24 Track
Extended Response. Extended Life. Ultra-low distortion. |
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| We were EMC's exclusive representative & sales agent to the music recording industry. Originally manufactured in San Diego, CA by Mr. Clay Whetstone, these fine magnetic heads are no longer in production. Mr Whetstone has retired from manufacturing and we're truly sorry to have lost such a fine product. |
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| Out of production. Please contact us for options. |
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Download PDF |
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Ampex Products
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Shop ATR-100 Products
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MagREELS™ - Precision Auto-Centering NAB adapters for the ATR-100
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| Think NAB adapters are just for holding reels on the recorder? We are really excited about this new product and we're sure you will be too if you give them a spin. You simply won't believe how significant a contribution MagREELS™ can make to a smooth running machine until you experience it for yourself.
The world’s best tape recorder deserves the world’s most precise NAB adapters.
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NAB Machined 6061-T6 aluminum alloy. Concentricity & axial runout is less than .003" TIR. Beautifully anodized for appearance and durability in your choice of three colors and laser engraved.
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Three stainless steel ball detents spaced at precisely 120° provide equal outward pressure of 4-7 lbs at each point, to capture the reels and provide DYNAMIC REEL CENTERING automatically. No clamps to turn or expansion collars. “Snap” the reels on and lift the reels off - it’s really that easy.
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NAB drive pins (3) are case hardened steel in black “no-rust” finish. You won't find any plastic on MagREELS™ NAB adapters.
Auto-centering MagREELS™ adapters will absolutely:
- Expedite & simplify reel changes
- Minimize Wow & Flutter by improving reel concentricity and decreasing the amount of work required of the constant tension reel servo
- Dramatically improve tape pack at fast wind speeds
- Add a great high-tech look!
Order the "Basic set" to support 1/4" & 1/2" tape widths. Add the optional .25" spacers with the "Complete set" to support 1" tape and optimize the handling of 1/2" reels.
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On 12/28/2011 9:02 PM, Denny Chandler wrote:
"I put them (MagREELS) on the day after I received them - my Christmas toys. Wow! Fast rewind tape pack looks almost identical to 30 ips play tape pack and the reel wobble is gone. I would never have thought adapters could make that big of a difference.
Thanks for making these! I'm very happy with them.
My advice to all who run ATR-100's, it's a no-brainer, get yourself a set of MagREELS."
Denny Chandler
Las Vegas, Nevada
via email
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Downloads:
Info & Specs.pdf
Installation.pdf
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Armrest endcaps for the ATR-100
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| Molded from rugged polyurethane - 75 shore A durometer. These will exactly replace your missing endcap(s) but won't have exactly the same look. So, we sell them in pairs only. You've got a choice of flashy red or traditional black. Replace missing original parts, or get a pair to freshen up the appearance of your machine. |
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Head Assembly Parts - Upper Limit Guide
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| OEM ceramic parts are no longer available. We needed a durable, cost effective replacement. Our answer is precision machined, non-magnetic stainless steel, plated with a thick coating of heat treated electroless nickel for hardness and long wear. Hand polished for a brilliant and ultra smooth finish.
Slightly larger (diameter) then the original part for secure limit guidance at fast wind speeds, i.e. when the tape lifters are energized.
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Head Assembly Parts - Lower Limit Guide/Post
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| OEM ceramic parts are no longer available. We needed a durable, cost effective replacement. Our answer is precision machined, non-magnetic stainless steel, plated with a thick coating of heat treated electroless nickel for hardness and long wear. Hand polished for a brilliant and ultra smooth finish. The base is lapped by hand to "trim" the height of the part to within .000050" of exact specification. |
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Replacement Control Panel Overlay
The fastest, easiest way to give your ATR-100 a face lift. |
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| Instructions plus everything you'll need for removal of the old panel and installation of the new are provided. Permanent factory colors on 25 mil LEXAN. |
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Installation PDF |
ATR-100 PC-control panel w/ VariSpeed & Search-to-Cue
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| A great looking, USB interface for fully controlling your ATR-100 from your PC desktop. Opens on top of your mastering applications and includes a fine resolution vari-speed and search-to-cue all in one compact package. Now, you can have everything you've wanted for your ATR-100 with the convenience of centralized desktop control. |
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| Sorry, but limited interest in this product didn't justify production. Some ideas live on as "concepts" only. |
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"Click on" the image for a
detailed "look"... |
Capstan with Optical Encoder
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| Simply the best available for your ATR. Guaranteed low flutter <.02% din pk. @ 30 ips (<.015% typical).
The others claim it - We'll prove it !
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| Yout trade-in is requested. |
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Timer Idler Assembly
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| Guaranteed timing accuracy and concentricity with low flutter. Low noise bearings. The best you can buy for your ATR-100. |
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| Your trade-in is requested. |
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Tape Guide Plates
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| Due to the scarcity of OEM parts, we are now offering our highly polished, heat treated, electroless nickel plated guide plates for your purchase. Exact replacements for the original parts - they look sharp, work great, and they're affordable! |
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Complete Tape Guide Assemblies - "ready to go"
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| Complete assemblies are available for 1/4" and 1/2" tape. Hardened, electroless nickel guide plates work great and look sharp. Bearings are appropriate precision class and selected for low noise. |
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1/4": p/n: ATR.TG.25
1/2": p/n: ATR.TG.50 |
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Tape Guide Bearings
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| Precision, low-noise bearings for all rebuildable ATR-100 tape guides. |
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| p/n: 626ZZ.A5.NS |
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| Note: Qty. (2) bearings required for 1/2" guides |
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Non-rotating TFF Scrape Flutter Filters for the Ampex ATR-100
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| Non-rotating, floating, teflon elements with adjustable zenith for accurate tape tracking - extremely low coefficient of friction. As the tape moves across the elements it pulls away molecular level particles of teflon. This process actually serves to "lubricate" the tape path thereby reducing tape shedding.
- No low frequency flutter component
- No low frequency noise or "tone" generation
- Patent Pending
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1" - 2trk.(top photo) p/n: ATR.TFF.SFF.1
1/4" - 1/2"(bottom photo) p/n: ATR.TFF.SFF.5
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| Sold as a set of (2) only |
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Quartz/Pyrex Lifter Sleeves
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| MUCH harder than the common chrome sleeve - longer wear & for less money. Centerless ground and highly polished for accurate tracking. Instructions provided for easy install. |
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| Sorry, these are currently unavailable. Please check with us for other options. |
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Molded Accessory Tray
This item is a truly nice addition! |
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| Exactly replaces the flat panel on the left side of your ATR-100 deck. Keep pens, edit blades etc. where you need them and out of the tape path! Made by AMPEX and originally offered as an OEM option. |
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Input-Output Extender Board
A simple, elegant solution to the ATR-100 I/O module calibration problem. |
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| How do you make adjustments to the input-output electronics while they're sitting inside the overbridge? THIS is how you do it. Strong, machined aluminum supports and a high-quality circuit board. |
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| Hint: If you've never calibrated your ATR100's I/O modules, they are not calibrated. Period. |
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Promo/info PDF |
EMC - ATR series Music Mastering Heads 1/2" - 2 Track
Extended Response - Extended Life - Ultra-low distortion. |
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| We were EMC's exclusive representative & sales agent to the music recording industry. Originally manufactured in San Diego, CA by Mr. Clay Whetstone, these fine magnetic heads are no longer in production. Mr Whetstone has retired from manufacturing and we're truly sorry to have lost such a fine product. |
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ERASE - p/n: EMC.ER.5
RECORD - p/n: EMC.REC.5
extra PLAY - p/n: EMC.PL.ER.5
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"Jeff -
I installed the EMC ATR-100 heads that we bought from you on the ATR that we bought from an eBay seller and while I did have several problems with his machine your heads were perfect. This is our first set of EMC heads and I am very pleased with the results......
Regards!
Kim Stallings
Sony Music Studios / NYC"
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| Sorry, no longer in production. Please check with us for other options. |
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Informational PDF |
AMPEX ATR-100 O.E.M Maintenance & Shop manual
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| THE ORIGINAL - taken from the LAST, published version. Provided as a searchable PDF on CD or Download (155mb).
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p/n: CD: ATR.100.MANUAL.PDF_CD
p/n: downLoad: ATR.100.MANUAL.PDF_DL |
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| Sorry, the printed version is no longer available. |
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Tools for the Tape Path
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Shop for Tools
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Head Alignment Reference flat
A must for all transport alignment. |
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| Ultra-Precision machinist's parallel. Made in the USA from high quality, thru hardened tool steel and flat ground on 4 sides. For gauging & setting tape path & head alignment.
Cautionary note: metal laminated heads are relatively soft, so before alignment check, it is wise to cover the head gap with a strip of 1/4" or 1/2" splicing tape only. This will reduce the possibility of any surface damge. Also, be sure to demagnetize the bar before each use. When completed, clean (with HR&R) and demagnetize the heads.
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Tape Path Gauge Block for Set-up of MTR-90 tape path
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| Gauge Block designed with 1/2" tool steel base for stability and rigidity, enabling accurate set-up & maintenance of tape path height & parallelism. An amazing tool for problematic MTR-90 transports.
Rental unit only is available. (USA only)
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Precision Spring Scales
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| Swiss made, quality scales with "Zero tare", for setting critical tape path tension. Available in a wide range of values.
Values below are stocked.
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p/n: #41000 1000 gram (MTR-90 set-up)
p/n: #80005 5000 gram (Studer) |
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Download PDF |
Stubby Wrench Sets
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| Quantity of 7, well made, 12 point, forged pieces. Fully polished. Stubby length for getting in to tight spaces.
Molded plastic carrier. USA made.
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Metric Set - p/n: TLS.SWS.MET.7
SAE Set - p/n: TLS.SWS.SAE.7 |
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Magnetic parts picker w/ LED light
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| The LED light, an extension length of 32 inches and a strong rare earth magnet makes this by far the best we've ever found.
Comfort grip, will pick up and hold nearly 8 lbs while actually enabling you to see what you're trying to pick up!
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| A must for every tape recorder tech's toolbox. |
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Extendable Inspection Mirror
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| Need to see around corners and under the chassis? This item does it and the back end has a small rare earth magnet enabling you to pick-up that tiny screw you lost. Extends to 19 inches. |
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| Another must for every tech's toolbox. |
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Head, Red & Roll™ Cleaner (HR&R)
The amazing cleaner for everything in your tape path. |
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| "The Right Stuff", HR&R is a professional audio/video and all around shop cleaner. A proprietary blend of ozone safe, azeotropic hydroflurocarbons (HFC's), HR&R super cleans and degreases safely without the risk of rust or corrosion.
The only industrial duty product available to the audio professional. Non-toxic and non-flammable. Ships as Non-hazardous & D.O.T. unregulated. Head, Red & Roll Cleaner is available now.
Now, the preferred head cleaner of The United States Library of Congress, American Folklife Center.
To order: "Click here"
A sample (1/2 fl.oz.) of HR&R will be included with your order for other merchandise worth $25.00 or more.
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HR&R-MSDS.pdf |
MRL - Reference Alignment Tapes
Always 10% off retail at our store |
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| We've kept it simple. We recommend and sell only what we consider the most useful and cost effective versions of the MRL tapes - the one's we use in our own shop - and we sell them at a discount.
For most applications, we recommend the two-speed, 11 minute tapes.
Available in: 1/4", 1/2", 1" and 2"
Our recommended test tone pattern: 1khz, 100hz, 4khz, 10khz and 16khz
Record levels: 250nWb/m (+3) and 355nWb/m (+5.5)
Without the appropriate MRL tape, you're just guessing!
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Bearings and lubricating oils for Recorders
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Bearings, lubricating oil and mechanical components
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| In stock , a low-noise, precision bearing for virtualy every tape recorder application. No matter how obscure...Far too many to list here.
Got a bearing part number or a specific machine application ? "Click" the envelope and send us a preformatted email inquiry. We'll get back to you shortly.
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| Oil and lubrication requirements are very specific. Using the wrong oil in your application can be disastrous. Always use the manufacturer's recommended lube or check with someone who understands the compatibility issues before making a substitution.
We've got the right lube for all your Otari & Studer plain bearing motors.
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| You can buy bearings & lubrication at "Shop PrecisionMotorWorks" |
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