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
I recently had the opportunity to work on an iconic Rega Planar 3 belt-drive deck. It reminded me of all that I like about these classic decks, and a couple of things I really don’t…
The Rega Planar 3 has deservedly won a place in the hearts and minds of many vinyl lovers over the years.… 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 modified a Musical Fidelity X-CAN V3 headphone amplifier. My goal was to see what sort of improvements I could make without spending too much cash.
The X-CAN V3 uses bipolar output devices, with a tube driver stage. The tube driver stage is a JAN (Joint Army/Navy) 6922 mil-spec dual-triode tube, per channel. These tubes run in class-A and give the voltage gain necessary to drive a pair of BD139/BD140 bipolar transistors.… Read more