The Secret Society of Lathe Trolls

Anyone based in UK, England, Herts, wishing to collaborate, or contribute practically on the build of a complete cutting system feel free to contact me, i have plans!, i estimate spending 1 to 2 years to get something worthwhile working.

The chemicals I used were from US they supplied photographic stuff too. I wasn't involved in the silver process much, i worked electroless copper now the catalyst for copper (can't remember name at mo') is V V expensive i used 4.5 litre bottle = £15000 which made about 300 litres of solution. Worth ...

I collect records i'm sure i've got an old LP with about 45mins on it And 7" EPs seen several over 10 mins, i will put it on my list of things to remember to try and find, and post when i do! Actually i got 70's disco on 7" with 12" mix on B side 9.5 mins on Epic label very shallow/narrow but ok if ...

Fight the new world order.... record MORE and MORE

Hi SRSanford10 I have experience in commercial PCB manufacture, electroless silver plating is now commonplace, and it is one of the more reliable plating processes too. The silver bonds really well, and is less sensetive to contaminants etc, so a better bet for doing at home, can't remember the name...

Thanks Blacknwhite Guess i will have to invest in them eventually, i've already invested what i think is a lot of ££ for the amount of information you get. I know these books are copyrighted works etc, but for this subject matter they are a rare source of reliable data/info and importantly the "prop...

whilst on the subject of the AES Disk Books, does anyone know if they are in the public (free) domain. Strictly for educational purposes though!

Many of the old texts on disk cutting are now collectors items and priced way beyond the reach of the mere mortal like me trying to further my knowledge!!

i've spent some time researching RIAA looking for circuits, data etc. Came across useful design info regarding reverse RIAA and mentions some of the "nuances" of the curve, which i thought may be relevant to this thread !! http://www.hagtech.com/pdf/riaa.pdf If you look at them main site, is a compa...

hey trolls I've read in the posts that 40X mag. was standard on old lathes, would this enable you to see the surface of the groove walls, and see how smooth the cut was? What magnification would be needed to see the same on microgroove records? I'm also a mad record collector and i'm interested in i...

Hi Renegadedubhatter

I live in Hertfordshire and i'm looking for cutting equipment, get back to me, i'm interested.

markrob: I'm looking to add feedback to my head using an cheap electret condensor mic capsule. I've tried using magnetic windings as most pro heads do (see US patent 2522567), but its hard to eliminate cross coupling between the driver and feedback coils. My thought is that a capacitive pickup will...

well i may need to tackle this problem myself, i'm looking at some old recordio type machines i'm gonna get one to play with, can't find any european models so will probably buy from US which is 60Hz i think UK is 50 i't would be handy to know of others similar challenges!

i meant this link!!!
http://www.motorcontrolwarehouse.co.uk/inverters-invertek/optidrive-e2-110v-single-phase-input-ip20-/single-phase-output/invertek-optidrive-e2-0-5hp-inverter-1-phase-110v-i/p-1-phase-110v-o/p/prod_547.html

maybe that was true many years (decades) ago i've installed these units this link shows a commercially available unit single phase, for induction motors. this one's a bit big thats why better to make one, maybe get one salvaged

It's been a while since the last post...... There are Thyristor controlled motor speed controllers that work by changing the supply frequency, this would solve the supply problem. If you are hands-on enough you could build one yourself as it will only be low power, your machine can't use much energy...

Further to the posts about flexi's in the UK the main manufacturer was Lyntone i have a few of them, and wondered if the business still exists in some form, any further information appreciated. There must be some former employees about still? I will dig mine out see if any clues!

Hi Trolls, just found this forum, good work everyone it's all very interesting. I'm based in the UK and i'm interested in what recording lathes were/are used here. Obviously Neumann & Scully are seen in most cuttting houses other than that I know Lyrec portable machines have been used here, what abo...