Over the last couple of months I’ve been ‘secretly’ acquiring some vinyl goodies. First, I purchased a mint condition Fidelity Research FR-1 Mk 3 moving coil cartridge…
I followed that up with a matching Fidelity Research RS-141 one-piece milled aluminum headshell. These wonderful pieces of Japanese analog engineering partner up with my Jelco SA-750D tonearm, Kenwood KD-600 direct-drive turntable and (of course) Fidelity Research XF-1 M step-up transformer.… Read more
Organising vinyl can be challenging at the best of times. If you’ve ever watched High Fidelity, and you should have, you’ll know that you can spend ages just working out how to categorise and sort your records. Before we get to that though, there is the age-old issue of how to store them…
Well, I’m happy to say that IKEA comes to the rescue once again, with a great range of storage solutions that suit records perfectly.… Read more
I am about to embark on a Krell KSA-200S Class-A Amplifier Repair and Restoration, in this case for a very good friend of mine.
As many of you will know, the Krell KSA-200S is a beast of an amplifier, up there with the very best products Krell ever made. It is almost unliftable by one person, being hewn from solid slabs of steel and aluminium.… Read more
I decided to build a resistance standard, for use with my test and measurement gear and good enough that I could some calibration on test and measurement equipment owned by other people. I wanted to build something that would not be prohibitively expensive and that would allow me to reliably calibrate the resistance ranges of my two Keithley bench multimeters and various Fluke hand-held DMMs to at least 0.01% accuracy.… Read more
I’ve purchased some great new vinyl of late and recently took delivery of some great new polypropylene record sleeves. I get asked lots of questions about how I sleeve and house my records, so I figured I’d write an article about re-sleeving your record collection!
There are two main types of record outer sleeve: polyethylene and polypropylene.… Read more
I recently finished another, perhaps final, round of modifications to my Musical Fidelity Tri-Vista 21 Class A Tube DAC.
Actually, I may do some more power supply modifications, but more on that when it happens. This is part three in an ongoing process to develop and evaluate the best performance modifications for the wonderful Musical Fidelity Tri-Vista 21 DAC.… Read more
I recently built a dual-mono LM3886 chip-amp / gainclone amplifier from a kit sold by Brian Bell, at chipamp.com. You might like to build one too, they are a really cool design. In this article, I discuss the history of the gainclone and how I built my first chip-amp!
The LM3886 is one of National Semiconductor’s single-chip monolithic amplifier integrated circuits.… Read more