Nagravox can supply new replacement EPROM sets using new high quality EPROMS freshly burned and tested.
We can supply a good selection of the most stable versions in 1 and 2 chip sets.
What are the EPROM’s or PROM’s? They are a permanent memory chip that contain the full machine program that runs the A807 on the Tape Deck Electronics board. The EPROM is a programmed ROM that is ‘burned’ electrically once and then can last between 15 - 25 years before it needs to be refreshed or re-burned. These days it makes sense to offer new EPROM’s freshly burned with the appropriate code. Random error codes are typical example of a failing EEPROM set.
This listing is for 1 x or 2x A807 EPROM 's for mk1 and mk2 machines. Select your version. Mk1 and Mk2 are not compatible and you cant upgrade a mk1 to a mk2.
Nagravox is starting a library of obsolete and unavailable PROM's for Studer and Revox machines. We keep our own original masters and then also store the actual machine code on file which we use to clone new EPROM's in an appropriate burner. All PROMS are double checked after the burning process with the original machine code byte by byte.
Why different versions? Studer constantly updated and improved the actual code to not improve the functions and fix minor errors, but also to add extra functionality such as speeds, equalizations and time code. Nagravox can offer all the following versions (the 2nd numbers are roughly the year).
IMPORTANT. Before replacing any IC on a Studer A807, it is highly recommended that the tape control systems and power supply are fully recapped. See our other listings.
IS THIS KIT FOR YOU? DO YOU HAVE THE SKILLS AND CONFIDENCE.
We also have kits listed separately for:
DO YOU NEED SPECIFIC SPARE PARTS? We have many individual components for all Revox and Studer machines. Please check back periodically or contact us by email with your requirements.
ABOUT NAGRAVOX
NAGRAVOX specialises in Revox, Studer and Nagra tape recorder overhaul and upgrade kits and parts. Both electronic parts, kits, mechanical components and tools / test gear.
I definitely DON'T consider NAgravox as a typical beady eyed Ebay vendor trying to get the highest price and hocking anything that will sell. Indeed ALL my kits and parts are buy it now not auction for that very reason. I love and work with Revox, Studer and Nagra vintage gear every day. Its great equipment and I love helping other enthusiasts restore their gear. I back up everything offered with a help desk via email, phone or Skype to make sure what you buy from me works and is installed and set up the way it should be. Confusion and problems always occur on old gear but I am there to help you through it. I don’t just sell stuff to enthusiasts - I help with solutions and make things as easy as possible whilst still retaining the high quality and integrity of the original designers. I am the only vendor that does this. Others of course may copy me, as they have already done in the last 2 years (just look at the other vendors suddenly offering overhaul kits on Ebay - hmm .... some with dubious white washing machine capacitors and below spec suppression caps !!). Frankly, it may be just too much hassle for them to offer a full free backup support desk. Cheeky .. hmmm perhaps. You decide. I also am now remanufacturing parts specifically for Revox, Studer and Nagra usually using small specialist manufacturers in Europe, Australia and Taiwan to my design and specifications. Some of the more complex triple can high voltage capacitors for example I personally hand make for the F36 / G36 machines and old A40 amplifiers. One enthusiast restoring a F36 said to me about a year ago - surely you cant make much money on those considering the time and effort involved? He is right of course but the satisfaction of knowing every time I sell one of those kits, a F or G36 will be brought back into this wonderful analogue world of ours, frankly tickles me pink!
Revox A77 VU meters now remanufactured and better quality that the original. Motor parts such as low friction washers, shims, brake felts, lubrication felts etc - all newly manufactured for Nagravox. Solutions that make problems go away - see our new NAB deluxe overhaul kits with reel spacer disks. GOOD IDEA - you bet. Why hasn't anyone else thought of it - who knows - its not rocket science that's for sure! Will people copy me - of course - that’s life. Am I worried - no not at all. Catch me if you can ..... besides, its all good for the analogue tape enthusiast who wins all the way. Gee - I do ramble on a bit - don’t I! (smiley face here but its so tacky I wont put it in )
uh oh .... . ... here comes the small print and volumes of it ....!
Some blurb about me and why I do this. Some people think I am a nutter! Sometimes I might just agree!
Over the years restoring Revox's, Studer's and Nagra's and inevitably running the gauntlet of finding information and spares, the engineer in me has often asked the question. “Why cant I just get a professional upgrade kit with all the bits and pieces that are really needed”? There is a high degree of frustration in sifting through the hype of vendors sales talk, doubt on individual components serviceability and age and the need to shop bit by bit with many of the “bits in between” not available. One inevitably makes compromises and sometimes quick fixes often leaving a niggle of doubt and sadly sometimes not the results one was expecting or indeed all the promo hype intimated. Service manuals are obviously great but there is always those little nuances not fully explained, aspects seemingly missing and your particular fault symptoms not listed. Inevitably I have found that with old equipment replacing just the item that is obviously faulty or worn isn't always the end of the story or quick fix one had hoped for. So, on this basis and in a spirit of doing the job properly the first time, I have put together a series of what I call upgrade kits with all the necessary bits and pieces that are likely to be worn or old and need replacing. Each kit is designed to address an important functional aspect of ones restoration or repair eg a kit for the mechanical tape handling aspects which includes not just a new fresh Revox factory sourced pinch rollers but also the guide bearings made of stainless steel (not el cheepo skate board ones). If one of these needs replacing, you can be sure a lot of the associated componentry will be in a similar condition and also soon need replacing. Doing one without the other doesn't make sense! Why fault find a leaky capacitor and replace it when its likely all electrolytic and tantalum capacitors, some of which may be 40 years old, really should be replaced despite what they may test like under low voltage test conditions. What a hassle to have to source 50 or so odd value capacitors and then worry about the quality of cheap and nasty 'old stock' components that have been sitting on a shelf for years or fake Chinese made components!
My upgrade kits are thus formulated to include all the bits likely to need replacing that are commonly related. Most of the components that make up a Revox or Nagra tape machine were top quality in their day and a fair bit of the mechanical gear with a good clean up and lube will function fabulously for another 30 years. Yes, I do and can sell individual items but would prefer that you do the job properly and upgrade functionally related sections at a time. These are the ones that will likely be degrading your tape machines performance. My full kits have written explanations and guide notes with pictures to help you. I call these Service Sheets. The bits and pieces that go into the kits have been researched extensively, assessed carefully for suitability and tested in many restorations and projects. They are not just ordinary cheap replacements but something that will last and is of an appropriate quality and grade. Capacitors I researched extensively in my previous business when I needed a high grade electrolytic with low leakage current and long term stability for a particular timer application. I went through 22 different manufacturers before eventually accepting just 2 of those as being of a suitable compliance to specification, performance and quality for the application. One was Japanese and the other Taiwanese. I have used this invaluable experience to source and put together the full electrolytic / tantalum capacitor upgrade kits. Likewise for the lubricating oil for the robust Revox and Nagra capstan motors. Don’t be fooled by some of the Ebay and internet hype. For Revox there are specific oils you use depending on how old the motor is and you do not mix them nor convert from one to the other. For example, the PDP65 oil made by Kluber in Germany for both Nagra and later Revox / Studer capstan motors is very expensive but is the ONLY oil you should ever use on particular motors. And, yes, you DO definitely need to lubricate despite Revox manuals being somewhat vague about it (later bulletins and in particular Studer did update and document this need for service lubrication). OK, before I digress further ….
SUPPORT. I try to incorporate most of the “confusing” or difficult aspects one needs to look out for in our upgrade kits SERVICE SHEETS or instructional notes. We also refer you to the official factory service manuals most of which are in the public domain courtesy of Studer / Revox. YOU DON’T NEED TO PAY FOR THESE - THEY ARE FREE. Some Ebay vendors cheekily make these available for a price. I repeat you don’t need to pay for them! As our customer we are happy to either provide you with a manual or refer you to the appropriate download site. Further, as an after sales service, we are happy to answer any questions or difficulties you have in your repair or upgrade . We wont always know the answers but will certainly try our best to help. In any event, if we don’t know the answer it is an ideal opportunity for us to increase our knowledge and experience base and so welcome all problems. Indeed perhaps you might share some of your innovative solutions and experiences. After all we certainly don’t know everything and welcome advice, suggestions and constructive criticism. My philosophy is that in reality their are few problems only solutions waiting to be communicated or discovered. Why do we offer this level of support? Well as I indicated before, I do this out of a passion and I think I am right in saying so do you in your anticipated project restoring your treasured vintage gear. It is in this common spirit I am happy to share my knowledge and experience with you as a customer. Communication via ebay mail is fine but can be a little restrictive as we cannot attach pdf's which is the format of all our information and service sheet instructions. We can however send low res pictures if that may be useful. Once you have bought something then our normal contact information is made available to you by ebay which makes things easier. Please do not construe this as a hard sell from Nagravox to get you to buy something. Quite the contrary. Our hands are tied as we have already inadvertently got into trouble with ebay for trying to help. I hope you understand.
Good on ya (as we say down under!) for reading this far!
All the best with your restoration and hobby. May the analogue force be with you. Keep in touch!
Sigh ....... and now for some more bonehead small print .... may as well make hay while I can and seriously - apologies for the 'officious' stuff!
SOME IMPORTANT STUFF YOU SHOULD BE AWARE OF WHEN YOU BUY FROM NAGRAVOX. THESE ARE PART OF OUR TERMS and CONDITIONS of DOING BUSINESS.
1. COMBINED ITEMS and POSTAGE SAVINGS
If you are purchasing more than one item or kit, please either use the shopping cart (if available on your country version of ebay) or purchase individually BUT DON’T PAY. Continue buying individually BUT DON'T pay - as many times as you like. You can request an invoice if this option is available (not all ebays are the same!!!!) rather than paying straight away – or just don’t do anything and I will send you a combined ebay invoice. This will enable us to send you a realistic invoice with appropriate reduced postage. This is also the best way for international customers where the Ebay calculator for postage may be inaccurate. Some country’s Ebay works oddly and seemingly it is complicated to combine the way one should be able to or even have the facility of a shopping cart. WE DEFINATELY OFFER COMBINED POSTAGE despite what ebay message might tell you ( I have complained countless times and they refute there is a problem with some countries ebay version). If this is the case and you have difficulty combining multiple items, may I suggest you communicate directly with me. Alternatively purchase the 1st item and then send me a note or Ebay email with your other requirements and I will send a separate additional invoice. Ok ... now I am going to let it all hang out here and spit the dummy / all toys out the cot! Many people just ignore this and buy and pay for multiple items separately with the implication, "he'll figure it out". Hmmm I wont! To refund the extra postage paid is a real hassle and ebay wont refund their commission on the postage making me even crankier!!!. So, from now on, if you wont follow these directions and you pay multiple times expecting me to figure it all out - I wont. It will just stay as it is and I will have a beer on you. Thanks and cheers.
2. PLEASE NOTE - VERY IMPORTANT - POSTAGE COSTS, TIMES, TRACKABILITY, RISK and MORE……
I apologise for burdening you with this bonehead stuff. The Ebay / Australia Post link up charges shown on Ebay are not clear indeed possibly misleading. There is a collaboration and electronic link-up between Ebay and Australia Post which for the most part works well but there are some uh...oh's. We now only offer 2 levels of postage as insisted on by Ebay and Paypal and cannot offer the cheaper non tracked airmail service unfortunately. For some countries particularly in Eastern Europe, some Asian countries and South America, there is NO TRACKED service. This is a conundrum because ebay and Paypal insist on a tracked service but have their heads in the sand when it comes to practical alternatives. If we have to use airmail or registered service because there is no tracked service – the risk of this service with NO TRACKING is yours. You always have the option of selecting a courier service which is ridiculously expensive but is trackable at least. Why ebay don’t indicate that a tracked service is not available to your country is anyone’s guess – who knows !!!!!!
We have recently ascertained that even registered airmail is trackable but just not by you directly on line. If you take teh tracking or consignment no. to your local post office they can track it internally. This works in most of the countries that don't have tracked link up with Australia Post ... like Switzerland, Norway, Romania, Russian Federation etc etc.
Another learning moment recently. International. Anything over 2 Kg cant go Pack n Track and so will go registered or signed for airmail.
POSTAGE SERVICES
Local Australian Domestic is via Australia Post 500g. 1Kg or > satchel. They are trackable and take 4-10 days to most of Australia except the wop wops which is a bit longer.
International. Tracked or registered Airmail International via Australia Post International Airmail Service. To those countries postal service that have a transparent international tracking system – we will send via a special Australia Post tracked service (Pack n Track) . For those countries who don’t have an international compatible trackable collaboration we will send registered post which is safer, is not user trackable but is trackable until it enters your country but once it there. The cost is typically approximately ~$20 to new Zealand and parts of Asia, ~$26to N America and other parts of Asia and ~$30 to Europe and most other parts of the world. The Ebay calculator will work this out more precisely and WILL include their commission !! Time to destination. 1 - 4 weeks. Mostly the speed is outstanding but sometimes it’s a bit slow for an airmail service but I think things get held up in your customs and local post who take their time. Please see proviso above of your risk if only registered or airmail service to your country is selected or only available.
Want your stuff in a hurry? Courier / Express International. This is a fast (2 - 4 days), trackable, insured service and "ouch" expensive. (approx $50 - $75). We use either Australia Post EMS or DHL. Is it worth it.? If you are in a hurry or are really dubious of your post system (eg most places in Africa) then this is your option.
As I get more stock into our Europe store I may (at my discretion only) post to you from Europe – usually the UK. Please don't ask me to specifically post from Europe as I may not be able to. When I have a full stock complement in Europe of course I will offer postage from within EEC. All postage out of EEC will be using La Poste or Royal Mail and the "signed for" option which is trackable.
DECLARATION of value. Usually this is at the what you paid. However, I believe, vintage audio enthusiasts should not be penalised for their hobby by greedy governments! So, if you want a specific value declared at your risk, just ask. Usually AUS$25 is the threshold..
POSTAGE WEIGHT CATEGORIES The first tier of weight category is at 500g and then 1Kg, 1.5Kg etc. (Domestic next category is 3Kg). If it goes over 500g for international its roughly 0.85x the lesser weight category cost. Most cap pot kits weigh between 245 and 450g. Motor kits are about 150g. Do ask for postage consolidation / invoice otherwise Ebay calculates separate postage charges on multiple items and it will cost you more.
3. YOUR ADDRESS – this is really really important
It may be obvious but PLEASE make sure your address is 100% correct and add more information if there could be any possibility of ambiguity. THERE IS A LIMIT of 32 characters per line in the ebay / Paypal / Australia Post automatic link up and it does not warn you that address lines longer than 32 characters will be truncated. Do not exceed this 32 character including spaces limit per line. Do not use foreign language symbols like o ß ˘ ˆ - ~ ° Ç . The automatic link between Ebay / Paypal and Australia Post will not translate these correctly and your parcel may be incorrectly addressed. We rely on this auto link up which is very good but wont translate symbols properly or long lines of characters. Please also use capitalisation for your name etc. Its very unprofessional and just sloppy to use all lower case – yes I am a grumpy old man!. You be surprised how may addresses we get from Ebay without capitalisation, vague inferences to house or flat nos, all long address on 1 line and incomplete names. The information you provide to Paypal is automatically transferred into Australia Post and onto a label. IT MUST BE PERFECTLY CLEAR and ACCURATE. If it isn’t – the fault is with you and so is the risk.
Please make sure:
· DON’T exceed 32 characters per line including spaces. Use an extra line.
· Your full name is clear and capitalised appropriately eg Mr Firstname Surname etc
· House / flat / section number and street number are clearly demarcated with a comma and space between them. Don’t use foreign language symbols like o ß ˘ ˆ - ~ ° these wont be directly translatable by Aus Post / Ebay / Paypal. Spell it out on a separate line if it is a flat in a block in a street – no shorthand.
· Suburb, Town is clearly shown
· City is shown on a separate line
· UK people – Australia Post does not recognise your little hamlet of 5 people in the middle of a suburb or town. Add more information in case it spits the dummy which it often does for UK addresses – it likes a known suburb, town or city.
· Postal or Zip code is shown exactly as it should be. Don’t add spaces, embellishments or abbreviations. Australia Post system checks to see it is a valid international post code and spits the dummy if it isn’t.
· DON’T use abbreviations for your state. Spell it out fully. Australia Post / ebay link up has a problem with this. Eg TX, MN etc means nothing to it.
· Put your phone number in. SERIOUSLY its good idea if your post service want to get hold of you concerning your parcel! So many people don’t put a phone number in – why?
· Put your direct contactable email address in – and please not one that you never use - I am not psychic!
4. WAITING FOR YOUR PARCEL
We only post out once a week usually on a Friday or if eth wheels wobble on Monday. We have given approx transit times above and these are on the pessimistic side of what Australia Post indicates. Usually things are sent within a day or two airmail out of Australia once lodged. However parcels are often held up with your local post and customs for days and even weeks. From time to time we will also post out some parts from teh EU using either LA Poste or Royal Mail this may or may or may not speed things up - who knows! Parcels to South America and East European countries can take up to 6 weeks – why – only the Gods know! Canada often has very slow postage. UK, EU and USA are usually pretty quick but there are exceptions sometimes to the USA wher some states postal service sometimes forget to wake up in the mornings.
5. GETTING SERVICE SHEETS and LITERATURE
THESE ARE NOT INCLUDED IN WHAT WE SEND YOU – you must request them. We do not include these in the parcel simply because postage and printing will cost more and updates are difficult to accommodate. So, once you have received the parcel please contact us on our direct email (no ebay mail please!). Contact us as per package label and we will gladly authorise MailBigFile to send you a once only link to download the service sheet. Please no Ebay mail - we cannot use that service for service sheets - its JUST NOT POSSIBLE. Please also detail exactly what kits you purchased as it saves me time having to look it up. The service sheets are too big to send on normal emails as some email providers have a limit of 10 Mb. Some of our files are 200Mb. So MailBigFile works well. Please just be patient during the down load – it does take time and the strange interface makes it seem like nothing is happening. It is … go make a cup of tea! Please note ALL our literature is copyright and by receiving these you implicitly agree to comply with our copyright policy.
6. SUPPORT FOR NAGRAVOX KITS and PARTS.
I supply service sheets and support on the following basis.
Please read the label and flyer information in your package. This explains how to request service sheets. [NO Ebay mail please as we are unable to send large files via them.] Please detail exactly what kit or part you purchased otherwise I have to look it up unnecessarily and smoke starts to come out my ears. Service sheets are sent via a download service as a pdf document as they are usually too big for email. This may seem a strange way to do things but it is the most effective for me to make sure you have the latest service sheets as well as minimising postage and printing costs.
Parts and cut down kits don't generally have service sheets - only full kits. Sometimes however I may have written a technical note applicable to a particular part and its installation which with pleasure is available to you.
Personal online support in the form of questions, problems, issues, advice etc via email or Skype or Facetime can only be given to those diy purchasers that have purchased the full kits and downloaded the applicable service sheets. Please don't expect support if you don't bother to look at my service sheets. I also don't generally provide support to other commercial operators or competitors. Although I have never had to limit the amount of time I give you in free support, in the future I reserve the right to possibly ask you for payment of extended support that may run into many hours.
Service Sheets are strictly copyright protected and I reserve all rights in any form of my IP. ALL RIGHTS RESERVED Copyright © Jenform Australia Pty Ltd 2011. My service guides contain material protected under International Copyright Laws and Treaties. You may only use it for the private diy purposes intended – ie updating / upgrading / repairing your own vintage electronic device for which you have purchased a kit from Nagravox. No 3rd party is authorised. Any unauthorized reprint or use of any of my material is prohibited. No part of any guide may be reproduced, communicated or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system without express written consent from Jenform Australia Pty Ltd - which will not be unreasonably withheld - just ask!
Service sheets are for diy private enthusiast use only and NOT available to other commercial service, sales or competitors unless you have received permission by prior arrangement with me. This is not unreasonably withheld and I am quite approachable on a commercial liaison and agreement basis. I welcome commercial purchasers on a mutually cooperative and fellowship basis
Apologies for the having to spell out the above but unfortunately due to competitors copying what I do in the last year often offering inferior parts and no after sales service, it has been necessary. I am always happy to cooperate if it is in the best interests of vintage electronic enthusiasts of Revox, Studer and Nagra equipment who by their passion and commitment continue to ensure these wonderful machines are restored, preserved and used.
6. WARRANTY
All our kits are warranted for 2 years from date of purchase on the basis of component replacement. In the unlikely event that you have a problem or are not happy with any aspect please contact us and give us a chance to remedy the situation.
7. IMPERFECTIONS definitely NO NOS or 2nd hand!
From time to time we check the specs and do tests on our capacitors particularly the motor caps and can electrolytics which we make in house. We statically test them with instruments at max working voltage and then solder them in place on an actual circuit board or motor. That’s the way we test and ensure our parts are to a high standard. After the test is complete and the part passes, which it usually does, we put it back into stock. So, if you receive a cap with a bit of solder on the terminals – ITS IS NOT 2nd hand but just one of those that was individually tested. WE DON’T SELL ANY 2nd HAND CAPS or POTS! On the can type multi-caps and electrolytics we hand make these and epoxy encapsulate them so there may be small traces of glue on the terminals. Just scrape or file clean before soldering. Gosh … it is hand made by me personally… I might even autograph one for you…. and may be famous one day …
8. IF YOU HAVE AN ISSUE
Please contact me on normal direct email before contacting Ebay police! This includes “I haven’t got my package yet”. Ebay unfairly immediately consider the seller guilty of something and block funds with a pending black mark. Even if you have only just asked!. We have very few issues and pride ourselves that nearly all are resolved easily. Very seldom do we have an unreasonable customer and most of you are into the spirit and credo in which I make these kits and parts available – indeed my raison d’etre. I am here not because I need to make a living from Ebay as a beady eyed vendor or want to gouge as much as I can out of you. I am here because I want to see more of these old machines restored and treasured as they should be. If you are grumpy and a pain in the …. with an attitude please rather don’t buy anything from me. If you are a happy sort and have a positive outlook seeing the good in people rather than the negative, you will get a lot out of me and our relationship. We should always be able to sit down and have a cup of tea, glass of wine and a chat. So - No boneheads please! Thanks. Please feel free to contact me direct which is easier for me to give in depth answers.
I apologise for all this “official” stuff above but over the years it has become necessary unfortunately.
All the best with your restoration and hobby. I hope our kits and parts help you achieve your goal of a perfectly operating Studer or Revox machine ... running like the proverbial Swiss watch!
Kind Regards,
Upbeat Pete at Nagravox Australia.