Vintage MMC 4000 cartridge, It was designed to track SQ 4 channel matrix records and tracked both mono and stereo records extremely well. It was fitted to Beogram 4002 The stylus was an elliptical naked diamond, radii 5x17u. Recommended tracking force was 1g. Each MMC 4000 was designed as an integrated unit. This meant that all critical components were designed and constructed as an entity in order to give optimum performance. The stylus unit was not separately replaceable as it was part of the integrated unit. Frequency range was 20-30,000 Hz ± 3 dB. Effective tip mass was a mere 0.5 mg and compliance was higher than 30x10-6 cm/dyne.This pick-up cartridge was specially designed for use in Bang & Olufsen record-players with tangential arms. Elliptical naked diamond Radius of curvature 5 x 1,7 mm Frequency range 20 - 25000 Hz+/- 1,5dB Channel separation 1000Hz > 20dB 40 - 10000Hz > 20dB Channel difference <1,5dB Intermodulation <1% Recommended stylus pressure 1g Compliance 30 x 10(-6)cm/dyne Effective tip mass 0,4mg

I JUST BOUGHT OUT A HOUSE WITH MORE HIGH END TOOLS THAN I HAVE EVER SEEN, NEW AND USED. ALSO ELECTRONICS AND ADVERTISING CLOCKS & CAMERAS. PLEASE KEEP CHECKING BACK BECAUSE IT WILL BE A FEW MONTHS TO SELL ALL. YOU ARE BIDDING ON THIS BANG & OLUFSEN TURNTABLE. WHAT I CAN TELL YOU IS THAT IF YOU PUT ON A 45. IT WILL TRACK TO THE RECORD THEN THE NEEDLE WILL GO DOWN, SAME WITH A 33. LIGHTS LIGHT UP, HARD TO SEE IN PICS. WILL LOCK DOWN FOR SHIPPING. PLEASE USE PICS AS PART OF DESCRIPTION. I HAVENT TRIED TO CLEAN OF POLISH. WILL COMBINE SHIP WHEN POSSIBLE. INTERNATIONAL WINNERS MUST USE THE GLOBAL SHIPPING PROGRAM. FOR OTHER ITEMS PLEASE CHECK WITH MY PARTNER ON THIS HOUSE , USER NAME STERLINGHILLTOP. EMAIL ME AND I WILL TELL YOU HOW TO FIND HIM.

Original Bang & Olufsen MMC4000 Cartridge/StylusUk stock ready for dispatch NOW Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1gram vertical tracking forceNo stock images what you see is what you getMMC4000 Product SpecificationsElliptical naked diamond Radius of curvature 5 x 1,7 mm Frequency range 20 - 25000 Hz+/- 1,5dB Channel separation 1000Hz > 20dB 40 - 10000Hz > 20dB Channel difference <1,5dB Intermodulation <1% Recommended stylus pressure 1g Compliance 30 x 10(-6)cm/dyne Effective tip mass 0,4mg Output mV/cm/sec. 0,6mV/47kOhmsMMC4000Large photoManufactured: 1974 - 1980Designer: Subir PramanikColours: Silver MMC 4000This pick-up cartridge was specially designed for use in Bang & Olufsen record-players with tangential arms.It was designed to track SQ 4 channel matrix records and tracked both mono and stereo records extremely well. It was fitted to Beogram 4002. The stylus was an elliptical naked diamond, radii 5x17u. Recommended tracking force was 1g. Each MMC 4000 was designed as an integrated unit. This meant that all critical components were designed and constructed as an entity in order to give optimum performance. The stylus unit was not separately replaceable as it was part of the integrated unit. Frequency range was 20-30,000 Hz ± 3 dB. Effective tip mass was a mere 0.5 mg and compliance was higher than 30x10-6 cm/dyne.

Original Bang & Olufsen MMC4000 Cartridge/StylusUk stock ready for dispatch NOW Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1gram vertical tracking forceNo stock images what you see is what you getMMC4000 Product SpecificationsElliptical naked diamond Radius of curvature 5 x 1,7 mm Frequency range 20 - 25000 Hz+/- 1,5dB Channel separation 1000Hz > 20dB 40 - 10000Hz > 20dB Channel difference <1,5dB Intermodulation <1% Recommended stylus pressure 1g Compliance 30 x 10(-6)cm/dyne Effective tip mass 0,4mg Output mV/cm/sec. 0,6mV/47kOhmsMMC4000Large photoManufactured: 1974 - 1980Designer: Subir PramanikColours: Silver MMC 4000This pick-up cartridge was specially designed for use in Bang & Olufsen record-players with tangential arms.It was designed to track SQ 4 channel matrix records and tracked both mono and stereo records extremely well. It was fitted to Beogram 4002. The stylus was an elliptical naked diamond, radii 5x17u. Recommended tracking force was 1g. Each MMC 4000 was designed as an integrated unit. This meant that all critical components were designed and constructed as an entity in order to give optimum performance. The stylus unit was not separately replaceable as it was part of the integrated unit. Frequency range was 20-30,000 Hz ± 3 dB. Effective tip mass was a mere 0.5 mg and compliance was higher than 30x10-6 cm/dyne.

Original Bang & Olufsen MMC20CL Cartridge/Stylus perfect working orderChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1gram vertical tracking force The first B&O cartridge to use a single crystal sapphire cantilever. Get yourself the originalSingle crystal sapphire cantilever offers a very rigid but light structure five times stiffer than aluminium and 21% stiffer than beryllium transferring more of the signal from your vinylEffective tip mass is a very low 0.3mg which ensures low record wear and a high stylus resonance well beyond the audible rangeThe body itself forms an effective Mu-Metal screen against stray hum fields practically eliminating magnetic interference Courtesy of Beoworld.orgMMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. Any questions just get in touch, Id be glad to help.

Original Bang & Olufsen MMC20CL Cartridge/Stylus perfect working order Uk stock ready for dispatch NOW Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1gram vertical tracking force The first B&O cartridge to use a single crystal sapphire cantilever. Get yourself the originalSingle crystal sapphire cantilever offers a very rigid but light structure five times stiffer than aluminium and 21% stiffer than beryllium transferring more of the signal from your vinylEffective tip mass is a very low 0.3mg which ensures low record wear and a high stylus resonance well beyond the audible rangeThe body itself forms an effective Mu-Metal screen against stray hum fields practically eliminating magnetic interference Courtesy of Beoworld.orgMMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. Any questions just get in touch, Id be glad to help.

B&O Beogram 4000 Vinyl Record Turntable with MMC20E Cartridge This one is in good used example with some marks from normal use and storage but definitely nothing at all major and nothing that would affect its performance has recently been checked and tested - all works and sound good (see photos/video) there are some small knocks to the wood surround and the dustcover does have some marks that might be polished out but it does do its one job - protecting the turntable, the turntable is fitted with RCA phonos and separate earth wire and has hade a new drive belt fitted recently, and it comes complete with the B&O MMC 20 E cartridge/stylus, it is fitted with a 2pin EU plug with an adaptor to a standard three pin UK plug. Note: Collecting in person (from North London) is highly recommenced for this item or partway meet, at cost and by prior arraignment. UK delivery or shipping with ebay’s global shipping program also available. If you wish to send your own courier company to collect (or export) there will be a charge of £20 to cover full packing. And now the boring bit: Please pay within two (2) days of the winning the auction to aid a speedy delivery or make contact straight-away to avoid any misunderstanding. Please dont ask for a Buy It Now - this is an auction and it will run until the end. Returns accepted with prior consent and at buyers expense. No post-auction deals or negotiations will be entered into. Thank you for your interest, any questions please ask - Good Luck and Bid to Win! Finally, we seem to be getting more and more time-waster on ebay these days, so apologies but if you are bidding from outside the UK (or EU) and or have a low feedback score, please send an ebay message at the time of bidding to show good intent and avoid your bid/s being cancelled.

Vintage MMC 4000 cartridge, It was designed to track SQ 4 channel matrix records and tracked both mono and stereo records extremely well. It was fitted to Beogram 4002 The stylus was an elliptical naked diamond, radii 5x17u. Recommended tracking force was 1g. Each MMC 4000 was designed as an integrated unit. This meant that all critical components were designed and constructed as an entity in order to give optimum performance. The stylus unit was not separately replaceable as it was part of the integrated unit. Frequency range was 20-30,000 Hz ± 3 dB. Effective tip mass was a mere 0.5 mg and compliance was higher than 30x10-6 cm/dyne.This pick-up cartridge was specially designed for use in Bang & Olufsen record-players with tangential arms. Elliptical naked diamond Radius of curvature 5 x 1,7 mm Frequency range 20 - 25000 Hz+/- 1,5dB Channel separation 1000Hz > 20dB 40 - 10000Hz > 20dB Channel difference <1,5dB Intermodulation <1% Recommended stylus pressure 1g Compliance 30 x 10(-6)cm/dyne Effective tip mass 0,4mg

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Original Bang & Olufsen MMC4000 Cartridge/Stylus Pre-Owned –Untested Returnable MMC4000 Product Specifications Elliptical naked diamond Radius of curvature 5 x 1,7 mm Frequency range 20 - 25000 Hz+/- 1,5dB Channel separation 1000Hz > 20dB 40 - 10000Hz > 20dB Channel difference <1,5dB Intermodulation <1% Recommended stylus pressure 1g Compliance 30 x 10(-6)cm/dyne Effective tip mass 0,4mg Output mV/cm/sec. 0,6mV/47kOhms Attention: We Ship UPS, USPS and depending on the item. Please, always view pics closely before bidding ! We are a reputable Stereo Store with 45 years experience. Professionally Serviced, Cleaned and Tested by our Technicians. All items are shipped fully Insured. World Class packaging guaranteed to arrive as shown in the pictures. Lower 48 States only Please.

VINTAGE BANG & OLUFSEN BEOGRAM 4000 TURNTABLE Very good condition and working order. MMC 4000 Cartridge. The brushed silver fascia has a few very light marks.The lid is in very good condition with only light signs of use and age.The rosewood plinth is in good condition and moves forward and locates in place when required(ie:belt change) The turntable operates well.Each control performs its respective function via the front panel. Original box and packaging. The turntable is part of a system that has been safely stored away and not been in use .The testing performed and results shown are straight out of the box… Demonstration available.. Starting with no reserve and just 99p start. Postage cost reflect size and insurance costs

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Original Bang & Olufsen MMC4000 Cartridge/Stylus Pre-Owned –Untested Returnable MMC4000 Product Specifications Elliptical naked diamond Radius of curvature 5 x 1,7 mm Frequency range 20 - 25000 Hz+/- 1,5dB Channel separation 1000Hz > 20dB 40 - 10000Hz > 20dB Channel difference <1,5dB Intermodulation <1% Recommended stylus pressure 1g Compliance 30 x 10(-6)cm/dyne Effective tip mass 0,4mg Output mV/cm/sec. 0,6mV/47kOhms Attention: We Ship UPS, USPS and depending on the item. Please, always view pics closely before bidding ! We are a reputable Stereo Store with 45 years experience. Professionally Serviced, Cleaned and Tested by our Technicians. All items are shipped fully Insured. World Class packaging guaranteed to arrive as shown in the pictures. Lower 48 States only Please.

MMC6000 A true CD4 quadraphonic pick-up cartridge, originally specified for the Beogram 6000 - see explanation belowAlso suitable For Beogram 4000 4002 and 4004 specifically and Tangential tone arms especially but interchangeable with many othersSupplied in its original B&O box with all the tools and test certificate (plastic sleeve missing - please see photos)Shibata profile Diamond keeps better contact with the groove and provides a better signal to be amplifiedUnused from new apart from testing with box and all accessoriesBuy with confidence - Over 75 MMC Cartridge styluses sold in new or new other condition with 100% feedbackThe QUALITRONICS DIFFERENCEMatch with:Beogram 3400, the first B&O CD4 Quadraphonic radial deckBeogram 6000 or 4002 with CD4 circuitAny tangential Beogram that used the thousand or 20 series of cartridge styli. Still and exemplary pickup in stereo only useUpgrade with:Not an upgrade but the successor cartridge MMC20CLMost of these are available in my other listings already or I have them in stock so do have a look below, if not I can source them for you in a few days. Please message me for that serviceTESTIMONIALS MMC6000 Manufactured: 1974 - 1979 Designer: Subir Pramanik Colours: Silver Bang & Olufsens (then) most accomplished pickup cartridge was fitted to Beogram 6000. The MMC principle was adapted to track 4-channel records: both Quadradiscs and SQ. MMC 6000 would track both mono and stereo records with the utmost fidelity. It was designed for record-players with tangential arms. The stylus was the Pramanik diamond, named after its inventor: engineer S K Pramanik from Bang & Olufsens Laboratories. The diamonds radii were 7 um/2 x 50 um. It was a refinement of the elliptical shape, rather like the shape of the cutter-head, and enabled greater contact with the undulations of the record groove. The cantilever was made of berylium - a material which is harder yet lighter than popularly-used aluminium. Effective tip mass was 0.22 mg. Compliance was higher than 30x10-6 cm/dyne. Recommended- stylus pressure was 1g. The total frequency range was 20-45.000 Hz. In the audible range: 20-15.000 Hz there is less than 1.5 dB variation and in the inaudible range 20,000-45,000 Hz where the carrier frequencies lie, the pick-up fulfils RCA/JVCs specifications for a Class A discrete 4-channel pick-up cartridge. Each cartridge is an integrated, individually calibrated unit. The stylus unit is not separately replaceable since it is part of the integrated unit. An individual frequency response curve traced on a Bruel & Kjaer level recorder and a complete Calibration Card were enclosed with every MMC 6000 sold.MMC6000 Product Specifications Pramanik diamond Radius of curvature CD-4 quadro Frequency range 20 - 15000 Hz+/- 1,5dB 20 - 45000 Hz (CD4) Channel separation 1000Hz >25dB 40 - 10000Hz >20dB Channel difference <1,5dB Intermodulation <1% Recommended stylus pressure 1g Compliance 30 x 10(-6)cm/dyne Effective tip mass 0,22mg Output mV/cm/sec. 0,6mV/47kOhmsWORLDWIDE carriage may cost more OR LESS!! than the listing states (I have to enter an estimated figure) and will be charged in full as per the service chosen and destination country. Eg, air, surface, express, economy. I ALWAYS SEND WITH QUALITY PACKAGING, TRACKING AND INSURANCE. IF IN ANY DOUBT PLEASE ASK FOR A QUOTE. I NEED YOUR FULL ADDRESS FOR THISPostage/Carriage charges:You may have noticed that these has risen lately. Insurance has almost doubled and many carriers will not accept turntables, speakers or amplifiers, meaning I have to find a specialist. Im sorry that these have to be passed onto you. Qualitronics aims to recycle packaging as much as possible but it will always be top quality and usually its double-box where appropriate too.DELIVERY TO CHINA, ISRAEL, AUSTRALASIA, INDIA, RUSSIAN FEDERATION AND SOUTH AMERICA WILL BE ROUGHLY DOUBLE THE QUOTED INTERNATIONAL PRICE. TO BID IS TO ACCEPT THIS EXTRA PAYMENT. THANKS!About Qualitronics!Im running this business part-time whilst I raise my children. My daughter Issy is 6 years old, the apple of my eye, my teacher and the beneficiary of your purchases. (She says THANK YOU VERY MUCH!) Tommy is a terror-bag Toddler, 2 years old and his dimples charm the world. I endeavour to source the HIGHEST quality electronics, mostly B&O HiFi and will have owned most of the models in question at some time in my life. This gives me a real experience of the merits to share with you. Im a time-served Sound Engineer and use my trained ear to check each audio item. Its not just sonics though, look out for the weird and wonderful... as long as its well madePRE-SALE ENQUIRIES:Im more than happy to answer any questions, offer advice and make suggestions over the phone and many customers have already found this useful.Please call the customer service line accessed by clicking the ask a question feature or opening the full information link in the business information section below. The full number is not always displayed. Often the first zero is missing. This is ebays procedure and not mine. PRODUCTION DESIGNERS AND PROPERTIES BUYERS A number of my items have now featured in TV ads, theatre and film productions and professional photography having been bought by production designers, location agents and properties buyers. These include a Beocenter 2200, Beocenter 7007, Beovox S45 speakers. I recognise the tight deadlines that you have to work to and the immediacy you often have to work under. For the speediest solution I can offer, including same or next day delivery, suitability of product or advice on matching items to an era (or decade), please use the customer service line accessed by clicking the ask a question feature or opening the full information link in the business information section below. COLLECT IN PERSON:This is actively encouraged! This way, no clumsy or disgruntled delivery person can break it! Do check in advance the location of the item youre interested in. A quick call will be all thats needed to confirm the whereabouts. Whilst the business is registered in London, I also have stock stored near Maidstone, Manchester and the Midlands. I can only accept cash on collection as the payment method if visiting the premises due to the PayPal charge back scam. INSTALLATION:I am increasingly being commissioned to complete installations of the products that I sell. Depending upon your location and items purchased this can be achieved for little more than the usual shipping and insurance costs of the selected units. You receive the assurance of a properly connected system, including optimum placement design and the benefit of a full demonstration, highlighting the tips and techniques garnered from decades of experience and expertise. Recent installations have ranged from a single Beocenter being connected to the existing speakers and unit for an 89-years young-lady for a few hundred pounds to a multi-room, Beocenter, Beogram, Beovox and B&O dedicated cabinet and stands combination, with remote control, for a few thousand pounds.Please use the ask a question feature to access the pre-sales telephone number to discuss your requirements.SOURCING SERVICE:Cant find that B&O product that youve yearned for since you were a kid? Need a rare or discontinued part to repair your unit? If I dont have it in stock, then I can normally source one very quickly. I have a wide network of fellow enthusiasts, collectors, dealerships and retired B&O Engineers whom I can call upon to fulfill your needs.FEEDBACK:Your positive feedback is vital to all good sellers. It lets us know that you are happy, if not delirious, about your purchase. On very rare occasions, there may be an issue with your order, such as courier damage or simply leaving transit screws engaged. (Quite common). I can remedy any such issues to your complete satisfaction most quickly via the telephone or eBay message (without the need to open a case). Please use the contact number shown when you select the ask a question button. I realise that you are very, very busy, only one in three of my clients has found the time to leave feedback that also informs their peers of their positive experience. Indeed all of Qualitronics feedback is from buyers and not inflated by that of other sellers. Your contribution will be greatly appreciated. INTERNATIONAL PURCHASES:Please note that Qualitronics is not responsible for any additional import tariffs or customs charges levied at source or upon delivery. It is the buyers responsibility to check before purchasing for their own countrys charges. VOLTAGE:All electrical items are UK voltage (240v) and B&O UK type xxxx unless otherwise stated.

Bang & Olufsen - B&O - Complete system from the late 1970s. Including tape, tuner, record player and 4 speakers. Not tested to see if working. One of the hinges on the control lid needs adjusting as wont shut fully. Really nice retro system and was top of the range in its day. Selling as spares or repairs as untested. Collection only from Okehampton in Devon

Sie bieten hier auf einen neuwertigen Tonabnehmer der Firma Bang&Olufsen. MMC20EN