We can provide power transformer which use for 117V, 220V, 230V, 240V.

YouTube channel > Otomon Lab YouTube Channel

I will give discount 10% or more for all item in my eBay listing, contact me for more detail

You can contact to me via FB: https://www.facebook.com/Otomon.Vintage/
Email: uesugilabo@gmail.com
Skype ID: uesugilabo

*Hot Items

This amp was made based on the schematic that Master Kondo of Audio Note Japan introduced in 1990/8,...

This is prototype 2A3 tube amplifier of new design, using C3g as driver tube. If you saw the status ...

Special order made amplifier, 845push pull, max output 100W in class AB or 60W in class A. All trans...

DAC decoder using Philips TDA1541A chip, output tube 45, using oil con, all best part ever....

Original price if you order the same one is 2800USD. VT62/801A SE stereo tube amplifier. VT-62 is wo...

It is stereo SE amplifie using 300B tube as power tube. Output is 10W. Walnut wooden case with top c...

2A3 tube amplifier with drive tube is C3g. Output is 6W. Can be ordered to change tube to 45, 300B, ...

This is 45PSE tube amp (can be used with 2A3), special order made with all ISO (TANGO) transformers....

It is SE amplifie using 211 tube as power tube. Output is 22W. Drive tube is C3g. High voltage versi...

307A tube amplifier with drive tube is EF37. Output is 5-6W. Prestage tube can be changed to 6J7, WE...

This sales was listed only in 3 days. 45 SE tube amplifier with drive tube is 717A. Output is 3-5W....

6C33C is tube using in Soviet battle tank. It was used in mono block amp...

This is the best amp which has output under 2W that I have ever made. Using 71A tube, para single en...

VT-62/VT-25a/10Y SE stereo on wooden board...

71A tube preamplifier with drive tube is Western 717A. Can be changed to VT-25, VT-52, 45, 50, VT-62...

Special order made amplifier using EL-50 as drive tube and EL-51 tube for power tube. Both EL-50 and...


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News of Us

What does our logo mean ? (2017-10-13)
Recently I have told you about the meaning of your name. Today I will tell you about our logo. The word "音" in the center of logo is OTO means the sound. The Miazima symbol is same as word "門" (MON) means the gate. It is nealy same "N" symbol in English. The red circle is same as "O" character, it combine with the red M character to become "MON". So, in the logo we have OTOMON !

By the way, in Japanese, as you put the word "OTO" into the word "MON", it becomes the word "闇", you can spell it "YAMI", mean the dark, same as hell. In the mean time, the red symbol in the center of logo have symbol like a sun, the bright side, the heaven. The word "mon" in Japanese means the gate, and also it means the bondary separates 2 worlds, in this logo it means the border line between the heven and hell and "the sound" is in the heaven side. It is same as symbol leading us thinking about the image of phantom in the Opera, the music in heaven and the dark side without it. That is reason why the background color of our website is black.

The "M" word is also the symbol of mountain, the image of red sun raises up on the top of Fuji moutain is always the best symbol of Japan.

Thank you for reading.

Yours friend with name Ken.
We open ! (2017-10-07)
Thank you for your support and now we can start up my own store. Hope that you will still continue to support us from now on. We have hundreds of items that still in stock and we will list them on store from now.
If you dont see item that you want in store, please contact to me via

email uesugilabo@gmail.com or
skype id: uesugilabo.

If you are my old customer, please let me know, I will give you special price for all items in the day we open.

Thanks and regards.

Why we started with the name OTOMON? (2017-10-06)
In Japanese Oto means Sound and Mon means Gate. Otmon means the Sound Gate and our slogan will be let 's open the Gate of Sound from now on. We will try our best to bring the best sound in your budget to your home.