[bmichels]

I have tried today my TUR06 with the external cap. it was fun. The low end was AWERSOME!!!. Thinking of making an external connection for an big caps for home use. With the possibility of quick switching off...

What do you mean by " with the external cap " ?

 

[NNewman]

What do you mean by " with the external cap " ?

I have opened it and soldered a cap instead of an "standard" one... Unfortunately I cant load a picture. Dont know why...

 

[bmichels]

I see.  Congratulation.
 
I also modified my TU-05 by replacing all internal wires, changing the 2 transformer, removing the impedance switch which is in the signal path, and adding a (unbalanced) XLR ourput.   Mostly for the fun... 

 
 
 

 

[NNewman]

I see. You have done a big job. How can you describe the changes in the Sound? Did you change tha caps also? Resistors? What was the greatest influence?

 

[bmichels]

I did not tried changing Caps or resistors. May be I should try new caps IF it can fit inside the case which is already VERY crowded.
 
Main change for better SQ was by upgrading the 2 transformers: More clarity & black background.   I could not hear any sound improvement with the other changes.  
 

 
 
Implementation of the XLR was for convenience to use my Balanced TH900 without adapter.
 
 

 
and of course I has much fun with ... tube rolling 

  (left case=Voltage tubes;  Right case=Power tubes)
 

 

[Max Choiral]

any impressions about NOS Dac?

 

[bmichels]

  any impressions about NOS Dac?

 
did not see or heard it.

 

[NNewman]

any impressions about NOS Dac?

Hello. Just make this thread alive again, I want to share the news from A2P owner that the first DAC with the usb input was built and ready for the inside test. So it might be already a short time before the USB NOS DAC will be avsilable for pre order.

 

[bmichels]

I just received from Kageyuki Shikada a pair of 1L4 raytheon 

 
 
Those 1L4 « voltage stage » tube are an improved version of 1U4, and will favorably pair with my "TEN" japanese "3S4-SF power tubes" : quite a rare combo !  
 
I'm excited to test them in my TU-05...  
 

 

 

[NNewman]

I just received from Kageyuki Shikada a pair of 1L4 raytheon   

Those 1L4 « voltage stage » tube are an improved version of 1U4, and will favorably pair with my "TEN" japanese "3S4-SF power tubes" : quite a rare combo !  

I'm excited to test them in my TU-05...  

Hello. Looking forward to hear your impressions!

 

[bmichels]

Now the new tubes are installed and burning-in. 4 rare tubes .....

I will tell later how the IL4 compare to the Telefunken 1U4 that I used before.

 

[Kageyuki Shikada]

Hello everyone.

I am SHIKADA KAGEYUKI of ANALOG SQUARED PAPER.
I registered with Head-Fi.
Thank you very very much for many posts (and Interesting remodeling!!) about my work!
Thanks to everyone, I can make better products.
I will reply to questions as much as I can.

ありがとう。

A2P Kageyuki Shikada.

 

[bmichels]

Dear Kageyuki Shikada, welcome on your thread. And bravo for all the nice amplifiers that you built for us.

Now we are all looking for infos about your TUR-08 that is very exciting and promising, especially with balanced in-out

 

[GermanGuy]

Dear Shikada San, great to see you here, a big welcome from Germany!

 

[NNewman]

Shikada San, thanks for joining us here!