All posts by: Auw Jimmy

Takatsuki TA-2A3 Vacuum Tube

After trying Takatsuki TA-300B quite some time ago, now I got chance to try their new production of 2A3… Welcome Takatsuki TA-2A3. 2A3 is popular as Mother-of-Triode (or Mother-of-AudioTubes). Compared...... Read More

Elekit TU-8900 (300B/2A3 Amplifier) Upgrade – Part 2

As usual, very busy with work. So quite slow in the progress. But I managed to finish the headphone output section (Unit-4). Hope you enjoy it!      ... Read More

Elekit TU-8900 (300B/2A3 Amplifier) Upgrade – Part 1

Sorry for no video for quite some time. Quite busy with daily work. Today, I manage to create a short one. I start from the very basic “project management” approach,...... Read More

Ultimate “Cost No Object” Elekit TU-8900 Upgrade

This will be my ultimate Elekit TU-8900 “cost no object” upgrade project. I have collected the parts for quite some time. Some are new, some perhaps have been there for...... Read More

Book Review: Sakuma’s Articles Collection from MJ Audio

This piece of art (book, I mean) consists of articles, photos, and information about the famous audiophile/DIY from Japan, Sakuma. Though it’s not cheap (7700 JPY), this 346 pages book...... Read More

Takatsuki TA-300B: Made in Japan

Just bought new 300B tubes from Japan, Takatsuki TA-300B. This Japanese made tube should be one of the top line for 300B tube on the market – comparable with new...... Read More

Testing 2A3 Tubes – Matched Pair

This round, I’m testing tubes which claimed to be “matched pair” by the seller. I’m using uTracer 6 for this purpose. In general, it’s not easy to find what so...... Read More

Building Tube Tester/Tracer: uTracer V6

Construction video of my new uTracer V6. Previously, I built uTracer V3+ which also very good Tube Tracer/Tester. Only somehow voltage and current is a bit limited. You can see...... Read More

Ultimate Transformer for Elekit TU-8900: The One and Only?

My new Ultimate Transformers have just arrived. Power Transformer: HiB Double C-Core & OCC Cu/Copper Wire Output Transformer: NanoCrystalline/Finemet Double C-Core & OCC Ag/Silver Wire You can see more detail...... Read More

Construction of Elekit TU-8900: 300B/2A3 Amplifier

Here is the construction video of Elekit TU-8900. There are 3 videos: Two are the construction and one is the testing session. Enjoy!  ... Read More

Elekit TU-8500 Tube Pre-Amplifier

I just purchased an tube pre-amplifier kit, Elekit TU-8500.  This is quite small and compact tube pre-amplifier. Considered very reasonable in cost and eventually good sounding one. Here is the...... Read More

“The Ultimate” MyRef Rev C – A Tribute to Mauro Penasa

I will start moving out from this WordPress platform to YouTube. The main reason because I feel the video could “talk” more than photo, though it will take more effort...... Read More