development (7)

 New Hydrodynamic Oil-bath Bearing Units Available Now!

For many long years, J. I. Agnew has been examining, adjusting, repairing and replacing bearing systems of all kinds, from disk recording lathes and turntables to tape machines, high precision machine tools, measurement instruments, industrial equipment and all manners of motor vehicles, from passenger cars to heavy trucks. Over the past few years, he has designed and machined countless bearing units to replace worn or damaged units on a diverse range of disk recording lathes and machine tools. Valuable experience was gained, which along with his solid engineering background, was put to good use in improving his designs further and further, up until the current stage of development was reached.

New Series 6100 Vacuum Platters

The ultimate vacuum platter is finally here, and it is very reasonably priced. After three years of exhaustive research and development and several prototypes of different versions, along with field testing, we have finally arrived at what we believe is the most advanced and accurate vacuum platter ever made.

Available in 14" and 12" versions, our Type 6114 and Type 6112 Reference Instruments are now available to order, in any quantity. Do you want 100 of them? We'll make them, and threw in a quantity discount as well!

The Vacuum Tube Electrochemical Synthesizer: Type 8001

The Agnew Analog Research and Development laboratory makes a major breakthrough in the fight against the SARS-CoV-2 pandemic!

It is not a vaccine and it probably won’t do much against the virus itself (although it has been suggested that it could have an effect not unlike the yodeling of Slim Whitman upon the aliens in Tim Burton’s “Mars Attacks”, either on the virus or on humans, or both), but will at least give you something to do while you wait it out.

The Agnew Analog Reference Instrument Type 8001 is a unique electrochemical synthesizer, generating strange sounds through chemical reactions occurring in the built in reactor cell.

Direct-Drive Conversion on a Fairchild Lathe

The Fairchild line of disk recording lathes, first appearing in the early 1930’s, featured a General Electric hysteresis synchronous AC motor, running at high speed, with a worm and gear reduction to drive the platter. While this system in its various permutations in their different models was impressively well made and performed well for its time (see here for a more detailed description and pictures), a direct-drive system with a floor mounted motor is clearly the way to go if the highest level of performance is to be attained.

Testing Directly-Heated Triodes

In the darkest corner of the catacombs under the lab, illuminated only by glowing directly-heated triode filaments, top secret experimental research is being conducted…

Motional Feedback Disk Recording System Design


In 2015, J. I. Agnew started developing a high-end cutting amplifier for disk mastering systems, to be used with motional feedback stereophonic cutter heads. During this process, he investigated the design and implementation problems of such transducers in great detail. As usual, he documented his progress, which evolved into an engineering report, titled "An Investigation of Motional Feedback Disk Recording System Design", which was accepted for publication in the November 2018 issue of the Journal of the Audio Engineering Society, following the customary peer review process.

Lab Report: The Agnew Analog Stereophonic Cutter Head

Happy new year! Time to reveal what has been secretly developing in the lab throughout the past year: A stereophonic cutter head of an entirely unique design, invented by J. I. Agnew during his work with experimental transducers for measurement and testing purposes.