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Analog Squared Paper Discussion Thread. - Page 192

post #2866 of 3704

I have it correctly next month. Have asked the price and await details and will update! scrolling down their website page I see it is the equivalent of $1070

xNshf1

post #2867 of 3704

while writing this post the tu-05 battery pack is charged using an USB Power Pack (37 watt, 5 volt) using the charger and psu interface and everything is working as it should:

 

 

the voltage of the battery pack is slowly increasing from the 7.8 volt it had when i started charging it, so the current is correctly limited. i readjusted the dc/dc converter to 12v output voltage so the current and voltage regulators are less hot as with 13 volt input before, the regulators and the dc/dc converter voltage regulators are more than warm but not really hot, everything can be touched.

 

i am happy that everthing works because i have planned to use the same voltage regulator stages  placed directly near and for each tube for the filament / heater voltages.


Edited by GermanGuy - 12/5/13 at 6:04pm
post #2868 of 3704
Quote:
Originally Posted by dangyuangan View Post
 

I have it correctly next month. Have asked the price and await details and will update! scrolling down their website page I see it is the equivalent of $1070

xNshf1


so we can welcome and say hello  to a new tu-05 owner in the near future i assume ?!


Edited by GermanGuy - 12/5/13 at 6:04pm
post #2869 of 3704

can wait to have a tu-05 to listen to music:

 

as i accidently damaged the original tu-05 internal power supply board i am now waiting for test samples of the damaged japanese NJM IC's a german distributor was so friendly to order for me without any cost or the new boards from shikada san.

 

got a nice email from shikada san as feedback of my planned completely battery driven and battery based power supply and also the offer for all the original parts to rebuild my exitisting tu-05 and the double mono version for the extended case i got. shikada san promised to do everything that i get the parts before christmas.

 

in the meantime i am in the same situation as ianmedium when he had to send his amp back for repair.

 

even the cayin ha-1a with the new NOS tubes does not come near to the sound quality and especially this airy and spacious presentation of the tu-05.

 

i don just hope but i am pretty sure that there are a lot of improvements (if possible as the amp is that good) in the queue of shikada san for new releases of the tu-05 as i am working on this power path and a star topology for my tu-05 mods and shikada san responded "let's develop together" and mentioned that he also sees this as a point of further improvement.

 

for my small part i can say that i am happy to give something back to our great community by sharing my thoughts here and with shikada san so hopefully some improvements find their way into new or enhanced products everybody here can buy.

 

i find it absolutely great that shikada san is that open for ideas as possible startpoint for further improvements!


Edited by GermanGuy - 12/6/13 at 8:26am
post #2870 of 3704

@GG Thank you for all the hard work that you have made for this "community" GG! Really appreciate it!

Hope you can listen to your tu-05 again asap..

 

 

Quote:

Originally Posted by bmichels View Post
 

 

did you had a chance to compare sound of  TU-05 and TUR-06 ?   I am still wondering if I should not have bought TUR-06 instead of TU-05 !!


I have not got chance to hear the tu05. imo both of them have their pluses and minuses, you should get both type :D. if i got the money i will get the tu-05.

 

My tube tube rolling has started.

my first one to try is the philips df96, I ve been using them for about 6 hours.

There is still a microphonic sound at the back ground that really annoys me. hopefully it will be gone after 30 hours or so..

 

My first impression (very early too) of the tube, they really made my tur06 become a bass monster.. it gets much more boomy than the sylvania one. it gives much power to the amp also. Everything gets louder.

Overall sound though seems got bit more muffled especially the mid. Details still there but sounding is not as open and not as big as using the silvania tubes maybe because they are not fully settled in yet.. If you want a fun amp, much boomier bass and more impactful this tube definitely for you to try. 

post #2871 of 3704
When you say microphonic is the noise similar to a ting ting sound or is it more like a rustling sound? If rustling then give it a few more hours as that may go away with some burn in, if it does not then the tube though tested well will not be a good one. Also, have you cleaned the pins?

When I first started out on this I had a lot of noise, most of which went away when I cleaned the pins! If it is a ting ting noise then that is not microphonics. Some tubes have it, some don't, funnily enough some of the best sounding tubes I have have that tinging noise!

Your description of the tube though is odd to me. I have found this particular tube to be very transparent, especially in the mid range but perhaps as you say, it is early days, give them 20 hours and see what they are like then. I have found by that time the tube is going to tell you all of what it is going to do!

And once again GG, excellent work!
post #2872 of 3704

My TUR-06 should be arriving this afternoon, joining the TU-05! 

 

Will try and gather some thoughts between the two and post the findings........................

post #2873 of 3704

Looking forward to your review on the TUR-06, really wonder how it will pair with the HD800. I need a portable amp for them :)

post #2874 of 3704
Quote:
Originally Posted by spkrs01 View Post

My TUR-06 should be arriving this afternoon, joining the TU-05! 

Will try and gather some thoughts between the two and post the findings........................

Oh wonderful! I am just off to bed but thanks to time zones I should wake up to seeing your initial thoughts on both Gavin.
post #2875 of 3704
Quote:
Originally Posted by ianmedium View Post

When you say microphonic is the noise similar to a ting ting sound or is it more like a rustling sound? If rustling then give it a few more hours as that may go away with some burn in, if it does not then the tube though tested well will not be a good one. Also, have you cleaned the pins?

When I first started out on this I had a lot of noise, most of which went away when I cleaned the pins! If it is a ting ting noise then that is not microphonics. Some tubes have it, some don't, funnily enough some of the best sounding tubes I have have that tinging noise!

Your description of the tube though is odd to me. I have found this particular tube to be very transparent, especially in the mid range but perhaps as you say, it is early days, give them 20 hours and see what they are like then. I have found by that time the tube is going to tell you all of what it is going to do!

And once again GG, excellent work!


it is not a ting sound, its more like a electric rustling sound. At first try there is quite loud rustling sound on the background but after a few minutes play they started to going away.. but a little rustling noise still there.  If the noise is not going away after a few hours i will try to clean the pin again. or i will try the 2nd set out..

 

i just knew that tube rolling need a lot of patience, i already missed my tur+silvania tube sounds now.. :D

post #2876 of 3704
Ahh yeah, rustling, then first give the pins a clean, if that does not sort it out then let them burn in for about twenty hours. In my experience if the rustling goes on after that then its not going away so replace the tubes. But first go through the first few steps I mention.
post #2877 of 3704
Quote:
Originally Posted by holeout View Post
 

Looking forward to your review on the TUR-06, really wonder how it will pair with the HD800. I need a portable amp for them :)


in my email exchange with shikada san i also mentioned the hd800 and shikada san answered, that he can provide custom made (but very expensive) special core output transformers for the tu-05 to drive the hd800, so maybe this is also an option.

 

as posted i found two nice and relatively small output transformers that could be used with the hd800 fitting the specs of the tu-05, i think i will connect and test them during the weekend rebuilding my at the moment really desktop version of the tu-05 (all the different components unconnected on my desktop and without power for the led's due to the partly damaged internal psu board), but i have a new aluminium base to mount and assemble components for test purposes.


Edited by GermanGuy - 12/6/13 at 3:15am
post #2878 of 3704
Quote:
Originally Posted by xplosive View Post
 


I have not got chance to hear the tu05. imo both of them have their pluses and minuses, you should get both type :D. if i got the money i will get the tu-05.

 

My tube tube rolling has started.

my first one to try is the philips df96, I ve been using them for about 6 hours.

There is still a microphonic sound at the back ground that really annoys me. hopefully it will be gone after 30 hours or so..

 

My first impression (very early too) of the tube, they really made my tur06 become a bass monster.. it gets much more boomy than the sylvania one. it gives much power to the amp also. Everything gets louder.

Overall sound though seems got bit more muffled especially the mid. Details still there but sounding is not as open and not as big as using the silvania tubes maybe because they are not fully settled in yet.. If you want a fun amp, much boomier bass and more impactful this tube definitely for you to try. 


three or four times i spent some hours using an absolutely new tube combo for the tu-05 and then listening to the tubes from the first minute for some hours to hear the changes in sound, and with all tube sets bass was somewhat pronounced at first, but from hour to hour the sound opened, bass got leaner and the overall sound much cleaner, airy, soundstage wider. i would really give them some time to burn in.


Edited by GermanGuy - 12/6/13 at 1:49am
post #2879 of 3704
Quote:
Originally Posted by xplosive View Post
 


it is not a ting sound, its more like a electric rustling sound. At first try there is quite loud rustling sound on the background but after a few minutes play they started to going away.. but a little rustling noise still there.  If the noise is not going away after a few hours i will try to clean the pin again. or i will try the 2nd set out..

 

i just knew that tube rolling need a lot of patience, i already missed my tur+silvania tube sounds now.. :D


any actice computer or other active electronic device nearby ?

post #2880 of 3704
Quote:
Originally Posted by spkrs01 View Post
 

My TUR-06 should be arriving this afternoon, joining the TU-05! 

 

Will try and gather some thoughts between the two and post the findings........................


can't wait to read your results, a comparison of this two amps is something i think everybody here is interested in!

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