About technologies for your digital home

For beginners and tinkerers

Designing/rewinding your own power transformer

May 20th, 2019
diy designing your own power transformer

As you might already read in my previous post, I started to work on a new project – TDA1543 audio DAC project. After reading in different places, I decided to wind the power transformer myself. According to my understanding, almost all of industry produced transformers are under-winded and it barely matters where did you get […]

Considerations for TDA1543 DAC power supply

March 14th, 2019
TDA1543 DAC power supply

My Arcam Black Box (via eBay) v.1 has recently died. After the inspection, it appeared that TDA1541 got faulty. The way how did it end fully matches the description of other guys on diyaudio.com forum. It’s quite weird. I was playing around and tried new cathode bypass capacitors in my SRRP stage, which was directly […]

Re-doing 6N11(ECC88) SRPP from eBay

July 18th, 2018
Tweak 6N11 ECC88-SRPP from eBay board top view

  Another project from eBay. It is an assembled 6N11(ECC88) SRPP board. Who are not familiar – a Chinese vacuum tube 6N11(via eBay) is an equivalent of Russian 6N1 (via Ebay). I read somewhere that Russians transferred their tubes technology in 1940s during the hot communism era and friendship time with other  pro-communism countries. Whatever […]