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Analog Squared Paper Discussion Thread. - Page 98

post #1456 of 3704
After my success with the Mil-spec Sylvania's I could not resist these!

Processed By eBay with ImageMagick, R1.1.1.||B2||T0JKX0lEPTVjYTFhYjFlYTY1YTAyYTQwNTFlYTA1ZWVjZmU3NzA1MWY4NzcxMzg5ODJhfHxTRUxMRVJfTkFNRT18fE9SSUdJTkFMX0VCQVlfUVVBTElUWV9TQ09SRT00fHxDUkVBVElPTl9EQVRFPTcvMzAvMTMgOTowMyBQTQ==

Just made the purchase. Not only are they a perfect match from the same batch but the seller has tested them and they are technically a perfect match as well!

I noticed he has a pair of matched RCA'a as well if anyone is interested, excellent prices. I have sent him a note explaining our amp and asking if he has any more of the types we use, I think this is going to be a good seller!

http://www.ebay.ca/itm/NOS-Matched-Pair-RCA-USA-1U4-Silver-Plate-Top-Getter-Vacuum-Tube-100-/151092673710?pt=Vintage_Electronics_R2&hash=item232dd33cae
post #1457 of 3704

SURPRISE....SURPRISE...

 

What is in this little ruggedized case ?

 

 

 

Our " precious " of course...

 

Everything fitted inside: TU-05, Fostex Headphone, chargers, cables, and the source RWAK100.

 

So, after ....

 

   (1) the tube rolling saga,

      (2) the interconnects

          (3) the damping research,

               (4) the best source consideration (AK100...RWAK100... RWAK120-S... ??? )

    ... I propose now : (5) the Casing study biggrin.gif

 

 

 

Who thought that the road ended ?  It will never end :-) 

post #1458 of 3704

great! and the optimization of space, the headphone partly under the amp!

post #1459 of 3704
Splendid stuff!

Please tell us which case this is. Am I correct in thinking that it's a Pelican model?

Cheers,
Andy.
Quote:
Originally Posted by bmichels View Post

SURPRISE....SURPRISE...

What is in this little ruggedized
 case ?





Our " precious " of course...

Everything fitted inside: TU-05, Fostex Headphone, chargers, cables, and the source RWAK100.

So, after ....

   (1) the tube rolling saga,

      (2) the interconnects

          (3) the damping research,

               (4) the best source consideration (AK100...RWAK100... RWAK120-S... ??? )

    ... I propose now : (5) the Casing study 
biggrin.gif












Who thought that the road ended ?  It will never end :-) 
post #1460 of 3704
That is wonderful Bmichels, how ingenious !

I was thinking, other areas apart from tubes are as we have discussed support and isolation, also cables. What about coverings for the case. I remember that carbon fibre one a while back, who is the first to do leopard print blink.gif
I was thinking of that stuff they wrap cars in now. Amazing looking and looks like real paint. I wonder if they do gold!
post #1461 of 3704
Quote:
Originally Posted by smial1966 View Post

Splendid stuff!

Please tell us which case this is. Am I correct in thinking that it's a Pelican model?

Cheers,
Andy.

No Andy, it is not Pelican. It is a "photo case" made by HPRC. I can't find any ref N° on it.

 

post #1462 of 3704
OK thanks. Pelican make an almost identical range of cases with layers of foam in 1cm square blocks that can be plucked out. Speaking from bitter experience, it's advisable to make a template of your headphones/equipment and overlay it onto the foam before randomly plucking chunks of foam out, otherwise you could end up with a sturdy case and virtually no foam left! :-(

Cheers,
Andy.
Quote:
Originally Posted by bmichels View Post

No Andy, it is not Pelican. It is a "photo case" made by HPRC. I can't find any ref N° on it.




Edited by smial1966 - 8/2/13 at 1:40pm
post #1463 of 3704
Quote:
Originally Posted by ianmedium View Post

That is wonderful Bmichels, how ingenious !

I was thinking, other areas apart from tubes are as we have discussed support and isolation, also cables. What about coverings for the case. I remember that carbon fibre one a while back, who is the first to do leopard print blink.gif
I was thinking of that stuff they wrap cars in now. Amazing looking and looks like real paint. I wonder if they do gold!

Thanks Ian for the comments.  Still the case is not finish. It need serious finishing to be perfect.

 

As for isolation, I am really not sure that we want to isolate it as much as possible. Indeed I wonder if it is not somehow the opposite that we want in order to evacuate the micro-vibration away from it. So...over-isolation will be counter-productive and will keep the vibration inside rather than sending them away.   This is my non-scientific thought for this evening...

 

And some picture taken while listening to PinkFloyd in the evening on the terrasse...

 

 

 

 

 

 

Enjoy.... 

post #1464 of 3704

to build a good base for the tu-05 i today made two plates and a brick out of special, very fine cast concrete:

 

 

to better see the size here with amp:

 

 

i have not decided yet if to glue the two plates together or using cones between:

 

 

the weight of the plates is 2.1 kilos each, the brick is 1.5 kilos. should be heavy enough for a stable base with its 4.2 kilos.

 

tomorrow i will make the needed cones.


Edited by GermanGuy - 8/2/13 at 1:57pm
post #1465 of 3704
Great picture! With Isolation I was in fact meaning draining away vibration from the amp as in my experiments with granite and wood
post #1466 of 3704
Quote:
Originally Posted by GermanGuy View Post

to build a good base for the tu-05 i today made to plates and a brick out of special, very fine  cast concrete:




to better see the size here with amp:




i have not decided yet if to glue the two plates together or using cones between:




the weight of the plates is 2.1 kilos each, the brick is 1.5 kilos. shoukd be heavy enough for a stable base.

tomorrow i will make the needed cones.

Now that looks great, what are you making the cones out of?
post #1467 of 3704
Quote:
Originally Posted by ianmedium View Post

That is wonderful Bmichels, how ingenious !

I was thinking, other areas apart from tubes are as we have discussed support and isolation, also cables. What about coverings for the case. I remember that carbon fibre one a while back, who is the first to do leopard print blink.gif
I was thinking of that stuff they wrap cars in now. Amazing looking and looks like real paint. I wonder if they do gold!


these days i am thinking of not to use the wood pieces and brass metal for my protective pocket but instead use the tube card boxes cutted in pieces to glue them side by side onto the pocket and then applying two component epoxy resin and fibreglass mesh.


Edited by GermanGuy - 8/2/13 at 2:21pm
post #1468 of 3704
Quote:
Originally Posted by ianmedium View Post


Now that looks great, what are you making the cones out of?


two component epoxy resin. the casting molds out of wax.

 

wow - this is my post #500!


Edited by GermanGuy - 8/2/13 at 2:18pm
post #1469 of 3704
Now I am very much looking forward to seeing those cones!
Congratulations on 500 very informative and interesting posts GG!

Tonight I am very excited as Wilson Audio (the famed loudspeaker company) re-launced their audiophile recordings. They did these many years ago and released them on vinyl. They have now started to release them on high resolution downloads.

These recordings became famous not only for the exquisite quality of recording but also for the superb musicianship.

Right now I am downloading their first re-issue, Beethoven and Enescu and that will be tonights listening once I have down sampled from 176/24 to 24/96 via my Weiss Saracon software. If your interested it can be downloaded from here..
http://www.highresaudio.com/artist.php?abid=110704
post #1470 of 3704

Some lazy one here, who do not wish to built by themself, may be interested in those " dampling plates " from HRS.

 

review here 

 

 

 

Their smallest one, the HRS DPII-05545 is only 14.0 x 11.4 x 1.8 cm and cost apparently 145 $ here 

 

but of course, if you have many $ XXXX to spend you can chose from them ...

 

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