The Secret Society of Lathe Trolls

The analog version of the Journal has finally arrived!
Link the relevant blog post: https://agnewanalog.com/blog/2019/01/18/motional-feedback-disk-recording-system-design/

Many thanks, Pepperman, for your appreciative comments, support and encouragement. More soon!

Whats the chances of it being able to be rekokut friendly? Anyways,exciting news Jesus,im sure its gonna generate enuff interests . im sure plenty of cutters here that r cutting with old mono heads r waiting for the day that they can also cut in stereo! Cute housing,looks like those old vintage cam...

IMG_6687.JPG This is the first prototype. No 3D-printing. This is real metal. Unique transducer concept, never before used on a cutter head . IMG_6662.JPG Designed to accept a Transco 320/Adamant NSH-2 taper shank stylus. It will fit Neumann suspension boxes and we will supply a range of fittings t...

dkmastering, many thanks! Lukas, thank you. I can assure you that a lot has happened since the 1920's. My paper is not a repetition of what is already known, but a documentation of the latest developments and a presentation of the current state of the art, especially regarding cutting amplifier desi...

For the first time in many years, the November 2018 issue of the Journal of the Audio Engineering Society (JAES Volume 66 Issue 11) includes an article pertaining to disk recording technology! My engineering report, titled "An Investigation of Motional Feedback Disk Recording System Design" , was ac...

Thank you.
Yes, we can also offer a simple stereo unit. That would be the Agnew Analog Type 712.
It would essentially be two type 710 units on one box, without the protection fuse section.
Please email info@agnewanalog.com to discuss technical details and pricing.

Best wishes,
J. I. Agnew

A study in mono: Accessories for monophonic cutter heads. We recently worked on a few projects involving monophonic cutter heads. We basically had the heads and needed to test them, but no suitable stylus and only an AM44 available as a lathe. One of the heads came with electronics, but the other o...

I machine these out of aluminum. Have a look here: http://agnewanalog.com/products/mountingadapter.shtml I can make one for the VR if you want. I also make stylus shank adapters with which you could fit a Souri stylus on your Presto head: https://agnewanalog.com/blog/2018/10/13/lab-report-making-cut...

Looks like my proposal for updating standards has found an attentive audience: RIAA TO SET UPDATED STANDARDS FOR VINYL We are very pleased to announce a collaboration between The RIAA (The Recording Industry Association of America), ‘MAKING VINYL’ and the Media-Tech Association with the goal of upda...

Boogievan, I thin you misunderstood my post. I am not opposed to polarity inversion switches, I use them myself. I agree of course that there are several valid techniques that require one, like the Sylvia Massey example you mention. I was referring to the far more common practice of just flipping th...

Is your amplifier capable of driving a stereophonic cutterhead? What turntable to you have?
What do you need, exactly?
There are always plenty of options, you just need to be a bit more specific.

We can make almost any part for any make/model of disk recording lathe, as a one-off or in quantity. We can also make custom parts where needed. So, technically, it would be possible to make a leadscrew and half-nut for your machine, if you cannot find the original parts anywhere. In most cases, fin...

I have a spare MCI JH-110M preview head tape machine for sale. It is 1/4" (can easily be swapped over to 1/2") and 3 speed: 30ips, 15ips, 7.5ips. Switchable NAB/CCIR equalisation. So it will play almost everything. It comes with rollers for 1 revolution and 0.5 revolution delay for 33 1/3rpm and 45r...

Yes, Nygaard got it right, citing in his 1979 paper having used texts borrowed from 'Danmarks Tekniske Højskole'. Also, fwiw, Section 5 of the paper containing the image I attached is listed in the table of contents as 'Standards'. (For the record, the image is a screen grab from the .pdf available...

Depends on the configuration. Please inform us of your requirements by email.

We are offering an AM44 disk mastering lathe for sale. This is a very rare opportunity, since the AM44 is not yet in production. This is a prototype from our ongoing research and development work. When it goes, it might be a long time before another one becomes available. So if you need a profession...

I just went on the dole for a while, like 12 years, and I saved me money up by only eating biscuits! Cor blimey, these was roogh times! But I saved up a few quid and went and got meself a disk mastering lathe! I was the only lad in the entire council estate ever got me mits on one of those, all me m...

Thank you tragwag and Patrick! I was asked by a customer if I could make his 500 ohm head work with a "normal" amp and this is how these transformers came to be. It suddenly dawned on me that there are many 500 ohm heads sitting unused, while the solution is actually quite easy and only takes 5 minu...

Forgot to mention above, quantity discounts are available if you are buying 10 units or more. Just ask.