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Annalogsurviver: I sort of remember the twins killed themselves. It seems they did a lot of Decca overhauls maybe?
Yes, the story of Garrott Brothers is one of the most intriguing in all of audio. It is perhaps the best to read first
http://www.avguide.com/forums/remembering-the-garrott-brothers
It is also a story from which lineage of stylus retippers can be at least partially assembled. There is quite some info scattered on Pink Fish Media, as the Garrott Brothers have been at some point "apprentices" at Expert Stylus in the UK. Stylus/cartridge people, at least the ones I do know, are very proud of their achievements and generally think more than twice before passing their hard way earned experience to other people. As this was going on in the mid 70's, we may never know the whole truth, as at least Garrott Brothers can no longer tell their part of the story.
Be as it may, Garrott Brothers was the first firm I heard of to do retipping service - late 70, my late teens. I somehow did scrape together the money for Supex SD 900 Super MC cartridge from then the least expensive source, which was Hagen Olesen from Denmark. OK, that price was far more user friendly than Linn's from UK, but about 2-3 times I paid for my Supex just to retip it was beyond my means. Trouble is, in Yugoslav HI FI "press" of the time, Garrott Brothers retipped cartridges were hailed as the non plus ultra - no other cartridges were held in such high esteem, very first Koetsus included. Late 70s were the beginning of van Den Hul stylus, at first available on modded EMT cartridges, and priced at IIRC $ 900 - way above my student budget. I knew of no one that had a VdH until well into 80s, when this stylus became available on less expensive carts. But there were a handful of Garrott Brothers rettips floating around - enough to spread the word. It might come as a surprise to you, but we knew bloody well what was good/best - and were willing to save for what we believed in and to take the plunge given the chance. Taking a trip to a place 500 or so odd kilometres away just to hear one's object of desire was not that uncommon thing at all...
A couple of years ago, 2 or three, I scored for a friend an (ab?)used Micro Acoustics 100e cartridge on ebay from Australia. This is an entry model in the System II line of Micro Acoustics electret cartridges, the most basic and therefore the least desirable. But, with an all important twist - it sports Garrott Brothers Micro Scanner label, denoting best stylus tip by Garrott Brothers. Micro Scanner was to my knowledge the first commercially available (late 70s) stylus that later on became known as Micro Line, Micro Ridge and recently SAS - the first cartridge by a major manufacturer sporting Micro Line was Audio Technica's premium range Signet, model was TK10ML, in 1981.
Garrott Brothers cartridge, the one by the late twins, that you are most likely to come across is Decca of some sort or another. They did practically everything ( another friend menaged to score Stanton 681EEE with Micro Scanner ), but retipped Decca is perhaps their most known and "widespread" product. Although they were not keen on MCs, having produced their own version of A&R Cambridge P77 MM cartridge called K1 through K3, with ever more sophisticated cantilever/stylus as you went up the line, and cosidered this "Dynamic Coil" superiour to the MCs, they did process lots of MCs and results were always beter than the original. They were the ultimate perfectionists - with now their work mostly "available" as photo of a cart sporting their label, their painstaking work and precision achieved in mounting the styli is something that is slowly sinking into oblivion. Sooner or later, any stylus gets worn with use, and not many after the last made by the late twins more than two decades ago remain intact enough to this day.
In next post, I will publish the microscope photos of the Real McCoy - as far as I can tell, there is no photos of Garrott Brothers Micro Scanner stylus
available anywhere. The degree of craftsmanship may have been matched by now, but it can not be bettered - they did it as close to perfection as it can possibly get.