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Analog Squared Paper Discussion and Appreciation Thread. - Page 58

post #856 of 3470
GG, I am so excited for you, luckily it is now evening in Germany so not much longer to wait!
I am really interested to hear your thoughts not only on the amp but also the different tubes.

Kcee, I wonder what the customizations are!
post #857 of 3470

i assume you recommend some tube cleaning now!smile.gif

post #858 of 3470
Quote:
Originally Posted by ianmedium View Post


Kcee, I wonder what the customizations are!

 

 

I can't say for sure yet, but alot of it stems around not using it much as a "portable" amp and more so as a "transportable" amp. Having a readily available outlet wherever I would use it. Taking it too and fro from work and home and from home desktop to home bedside etc. So possibly a completely different power implementation. We'll see its just in the question and answer stages and he is busy. If it becomes too problematic/spendy I do not see why a standard setup could not work too. Just exploring options bigsmile_face.gif

 

Specifically talking about the TU-05  L3000.gif

 

PS : I love how open he is too accommodating specific needs and not being rigid in this aspect.


Edited by kcee - 7/11/13 at 10:20am
post #859 of 3470
Kcee and GG, I love how you are taking such innovative approaches to this amp and Kcee, your right, Shikada San is really open to alternative ideas, I think this is why this company is something rather different to anything else I have seen, the ability to make it bespoke is wonderful, I am really looking forward to what comes of your quest.

GG, get them pins a'polished! biggrin.gif
post #860 of 3470
Quote:
Originally Posted by ianmedium View Post

Kcee and GG, I love how you are taking such innovative approaches to this amp and Kcee, your right, Shikada San is really open to alternative ideas, I think this is why this company is something rather different to anything else I have seen, the ability to make it bespoke is wonderful, I am really looking forward to what comes of your quest.

GG, get them pins a'polished! biggrin.gif

Reminds me of the early days of another company I will not mention, as I do believe in karma.
post #861 of 3470
^ wink.gif

On to Tubes (I know, a shock for me to mention them!) I made the decision last week that once the Mil-SPec Sylvania 1T4's arrived from Switzerland I was going to take a break from collecting any more. Of course if something really rare comes up I will jump on it but having read a great deal about tubes now I realize that with so many being simply re-badges of brands within a parent company there is not a great deal of point in getting many more as I have a pretty broad spectrum of European tubes now. I still want to try Japan as there are meant to be some real sleepers from that country and the thought of running Japanese tubes in a Japanese amp is appealing to my OCD aesthetics!

So the Sylvania's arrived today from Switzerland, brand new in the box, same batch numbers, cleaned the pins and put them in the amp with the 3S4 Sylvania's which were made in the same factory (despite one saying Ken-Rad) as the 1T4's. Both Mil-Spec, both destined for the US Army Signal Corps and accepted by the military within 4 months of each other (the 1T4's being October 1944 acceptance and the 3S4's being February 1945 acceptance)

I have had them running now for 4 hours and they sound lovely. In truth I cannot discern any difference in sound presentation between them and the Lorenz's. Deadly quite tubes as well. I put my PF's on which can detect hiss really well and not a sound!

I thought I would share some photo's of the details and then in honour of woodcans a more arty shot, trying to capture early 1940's colour photo's!

This marking shows the tubes were headed for the US Army Signal Corps
AppleMark

This one shows the amazing detail of the printing showing that these have indeed been in their boxes (apart from the seller testing them) for almost 70 years. How cool is it to be the first person to put them to their intended use after all that time!
AppleMark

This one shows why I love Mi-spec tubes, look at the thickness of that mica. The thicker the mica the less microphonics and noise!
AppleMark

This one shows an unusual "Getter", oblong in shape
AppleMark

And lastly the arty shot! All American Mil-spec tubes and they sound so much nicer than Domestic US tubes to my ears, very impressed with these Sylvanias, so musical, detailed, rich and warm, lovely!



And so with that I hand the cap of tube thoughts over to the new folks who are getting their amps in this and coming weeks. That way there will be more balance and not just my opinions. I must admit I am kinda scared, I hope that you all enjoy your amp as much as I do and that you find tube rolling proves worthwhile, I look forward to hearing your thoughts!
Edited by ianmedium - 7/11/13 at 3:54pm
post #862 of 3470

I've been pretty occupied recently and just being able to monitor this thread from sidelines.

And it's interesting to see how this discussion continues to develop.

 

It's also pretty exciting to hear that some of our friends here will get their units in few days.

Looking forward to hear more from you guys.

 

Btw, my second batch of tubes have arrived safe and sound.

Thanks to my friend who has been getting a lot of trouble because of this.

Here's some of those tubes that just landed in my working desk but I haven't had a chance to take a peek on them yet.

 

I wish I already have GG's wonderful cleaning kit with me now. blink.gif

post #863 of 3470
Oh wow Boringer! You have so lovely tubes there, some batch match mil-spec and civilian, all US tubes as well. I am very much looking forward to you getting your amp and hearing your thoughts!
post #864 of 3470

dhl forgot to deliver the parcel (sic!) will get it on monday. so really time fore some tube cleaning!mad.gif

 

edit:

 

being home for more than an hour i got a call that the parcel was delivered (6 hours too late) so i had to go back to the office. i have a nice dictionary 'the german english dictionary of unpolite english' but found no words unpolite enough for dhl and their hotline.

 

good luck my boss just left the office and drove me home.

 

so here it is:

 

 

 

 

 

URGENT REQUEST !!!!

 

the power supply provided is not compatible with the german or european standards. it is written that it is a 12 volt 1.5 ampere version, but i need to know

 

- if the inner pin of the power jack connected to the amp is the plus (+) or minus pole (-).

 

could one of you please be so kind to check this with a digital multimeter so that i can use another power supply without the risk of damaging the amp ?!


Edited by GermanGuy - 7/12/13 at 7:42am
post #865 of 3470
Oh no!! I was so waiting for your thoughts, lets hope the weekend is fast!

Woodcans, are you home now?
post #866 of 3470

as far as i remember i now have 7 hours to listen!

post #867 of 3470

i had a very short listening session using the tracks i posted some time ago and the stock tubes.

 

the amp sounds very promissing, dead silent even with the fad pf viii.

 

i think it's like an excellent wine needing some time to be perfect. it definetly needs some burn in time for the soundstage to get wider and deaper and some tube rolling to get an even more airy presentation and fine details in the high frequencies.

 

but even now you can hear the potential of this amp, the bass presentation and texture, the pinpoint imaging and localisation, the dry and precise sound while being very musical.

 

so following ianmediums recommendation,the amp will get some time to burn in and i will use the time to finally start to clean some tube pins.

 

bye the way, i was so excited to listen to the amp that i even forgot to write down the two positions of the impedance switch, so if one could repost this for me, i would highly appreciate this.

post #868 of 3470

Congratulations GG. Glad it's in your hands. I look forward to hearing your impressions!

post #869 of 3470
GG! You got it, wonderful!
On my amp the up position is high impedance, down low.. Make sure you do not use this switch when the amp is powered up!! Likewise, make sure you turn the volume down when ending your listening session.

And whilst the amp does benefit from burn in it is not by a huge amount. I really recommend listening to the amp with some of your good tubes first, why not get the full potential right away! I would try the lorenz's in the 1T4 stage and the Phillips in the 3S4 stage and tell me what you think!.

Whilst I say burn in is not huge I do find a good ten hours on the tubes lets them settle in nicely. But I recommend before each listening session to allow the tubes to warm up with no music for a minute or two then play music for 20 minutes more before proper listening, the sound in my experience becomes fuller and richer and more detailed.

But most importantly, try your other tubes first over the stock ones, I liked the stock ones but the other ones you have I feel allow the amp to shine more. I am going to be looking at this thread all day, can't wait for more thoughts!
post #870 of 3470
As to the power supply I am afraid I do not have a meter to test mine to help you, also i only have two pins, not three!
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