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post #1471 of 1572
Quote:
Originally Posted by JamieMcC View Post
 
Quote:
Originally Posted by i luvmusic 2 View Post
 

THANK YOU! I will be ordering C-7X choke now for $17 i will take two.C-7X is that the one you've used? 

 

Before you order the Triad C7-X check out the thread on the bottlehead forum it details the mod and there is some discussion on the technical aspects http://bottlehead.com/smf/index.php/topic,6030.0.html 

 

With a standard enclosure fitting one of the chokes in is a bit of a challenge there are a few who have fitted them recently you will have a struggle getting two of them in. Much of the impact from the changes come from the large film cap most probable due to the big reduction in esr. The choke helps by substantially reducing noise and ripple. Ripple is reduced from around 1.5m in the standard Crack to 67u with the choke fitted.

 

By the way my case is about a inch deeper than a standard Crack enclosure.

Again Thank You Very Much!

post #1472 of 1572
Quote:
Originally Posted by JamieMcC View Post
 

While the stock Crack is super, for a few dollars more a hot rodded Crack with premium tubes combined with the Beyer T1's is truly epic :atsmile: 

 

I will be listing mine here soon its a UK 240 version (tubes shown not included) as I have a new bespoke Bottlehead build underway.

 

 

 

 

 

Interested in seeing your new Bottlehead Crack. If it looks better than the one you are listing for sale, I may have a little accident, if you know what I mean, lol. Will you be performing the same upgrades to the new Crack, or would you go even further. If so, do you mind sharing?

post #1473 of 1572
Quote:
Originally Posted by adamaley View Post
 

Interested in seeing your new Bottlehead Crack. If it looks better than the one you are listing for sale, I may have a little accident, if you know what I mean, lol. Will you be performing the same upgrades to the new Crack, or would you go even further. If so, do you mind sharing?


The next Bottlehead amp I will be doing is the Sex amp but I can see me doing a Crack again in the future.

post #1474 of 1572

Sweet.

post #1475 of 1572

How do you test a tube for short without a tube tester is this possible?Thanks!

post #1476 of 1572

Ok so I have a new toy a Hickok 6000 and am having a grand old time learning how to use it.

A little question that's been puzzling me when looking at the settings for testing tubes


In this instance I am looking at the 6080 varieties firstly as I was generally under the impression that a 6080 and a 6as7 where essentially the same other than their glass enclosure but I note differing settings on my testers tube charts.

It is the shunt settings that are different can anyone shed some light on what the shunt value is and is there some form of interpolation between the two differing shunt values that need to be applied for differing varieties of letter suffix also is this adjustment due to differing bottle size?

Out of interest how might setting the shunt at 81 half way between the two effect the reading would it be safe to try out of curiosity?

6080   7,5   HY-4506-2   100   83   A   3400   Triode No. 1
6080   7,5   HY-1203-5   100   83   A   3400   Triode No. 2

6AS7   7,5   HY-4506-2   100   79   A   2600   Triode No. 1
6AS7   7,5   HY-1203-5   100   79   A   2600   Triode No. 2

The second question is for US and UK manufactured tubes I am guessing it will be ok to test UK made Mullard or Brimar 6080 using the same tester settings for the 6080 US manufactured tubes and the same would go for test UK 6as7 varieties such as GEC 6as7G with the same setting as the US version?

If anyone can shed a little light on the subject it would help

 

Cheers

post #1477 of 1572

Nice toy can i borrow it Please!I will walk and pick it up.:biggrin:

post #1478 of 1572


Hi everyone.

 

Just thought you (6AS7G/6080 lovers) might be interested in a project I managed to persuade the makers of the Feliks-Audio Espressivo to consider.

 

Their unit looked very interesting, very well made and reasonably priced, but I felt they were missing out big time by using 6N1P drivers and 6N6P powers. So (rather cheekily!) I suggested they consider a unit using 6SN7 drivers and 6AS7G/6080 powers, given the popularity of these tubes and the wonderful results that they can produce...my impetus coming from the magic of the GEC 6AS7Gs.

 

Well, they have decided to make a prototype (which I never really thought they actually would!) which, if they can keep the cost well below the LaFigaro 339 for example, could be a real giant-killer. Especially as many of us already have the necessary tubes to make good improvements over what will have to be used stock, to keep the price competitive.

 

So I am waiting with baited breath to see how things progress...

 

If anyone is interested, I am sure Lukasz at feliks-audio.pl would really appreciate some positive feedback on this project...I just hope they can manage to put together this potentially exciting unit without costs spiralling!

 

Below is the current Espressivo...

 

 

Fingers crossed...

 

ps. Their email address is wzmacniacze@feliksaudio.pl


Edited by hypnos1 - 8/28/14 at 2:08pm
post #1479 of 1572

ermm...can they also come up with a DV336se type of amp..my coffeetable aint got the space !!

post #1480 of 1572
Quote:
Originally Posted by Lorspeaker View Post
 

ermm...can they also come up with a DV336se type of amp..my coffeetable aint got the space !!

 

Hi L.

 

IF these guys can manage to pull off a minor (no, MAJOR!) miracle and pitch the unit at about the LD MK9 price point (or less?!), then you would simply HAVE to get a bigger coffee table, lol! :wink_face:

 

Will keep this thread informed as to progress...(I for one am keeping EVERYTHING crossed they can do it!...).

post #1481 of 1572

can they do a balanced tube amp? 

post #1482 of 1572

The Bottlehead S.E.X. can be run in both SE and Balance and it's a tube amp.

post #1483 of 1572
If his coffee table can't fit the first option, I doubt the S.E.X. would as well.
post #1484 of 1572

Get a next coffee table (just Kidding).

post #1485 of 1572
Quote:
Originally Posted by Lorspeaker View Post
 

can they do a balanced tube amp? 

 

Hey, L...you want blood ?!...;)...the quest is to come up with an amp that has a really good spec; better quality construction than your average Chinese unit, and at a reasonable price...it'll be a miracle if the feliks-audio guys can manage what has already been requested lol! More bells and whistles = more $$$, of course...catch 22 :o...

 

Quote:
Originally Posted by i luvmusic 2 View Post
 

The Bottlehead S.E.X. can be run in both SE and Balance and it's a tube amp.

 

Ah yes, ilm2...but how much is the assembled S.E.X.?!

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