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Little Dot Tube Amps: Vacuum Tube Rolling Guide - Page 349

post #5221 of 7565

yes agree totally, chinese 6SN7GT in different clothes (but premium chinese 6SN7GTs) but a long long way from a proper CV181.


Edited by Nic Rhodes - 3/3/14 at 11:11am
post #5222 of 7565

Markedly so. The ECC32/CV181 is not a 6SN7GT, et vice versa.

post #5223 of 7565

I agree with Nic and Oskari, the Chinese CV181 have the same spec as 6SN7, which is not the same as the ECC32/CV181.

post #5224 of 7565
Quote:
Originally Posted by Oskari View Post
 

Markedly so. The ECC32/CV181 is not a 6SN7GT, et vice versa.

 

 

Quote:
Originally Posted by rosgr63 View Post
 

I agree with Nic and Oskari, the Chinese CV181 have the same spec as 6SN7, which is not the same as the ECC32/CV181.

 

Hi guys. Yo...a '6SN7' that isn't, and a 'CV181' that isn't - all sent to confuse us (yet again!). However, the Shuguang 'Treasure' series CV181-Z certainly has had some very good reviews in the past, and does look to be a VERY beautifully made tube. Wonder if this might make a nice replacement for the 6H30P/6N30P-DR (would certainly look MUCH better behind the C3GSs - but what about sound?).

Would love any feedback from people with first/second-hand experience of these tubes...


Edited by hypnos1 - 3/3/14 at 2:36pm
post #5225 of 7565
Quote:
Originally Posted by hypnos1 View Post
 

 

 

 

Hi guys. Yo...a '6SN7' that isn't, and a 'CV181' that isn't - all sent to confuse us (yet again!). However, the Shoguang 'Treasure' series C181-Z certainly has had some very good reviews in the past, and does look to be a VERY beautifully made tube. Wonder if this might make a nice replacement for the 6H30P/6N30P-DR (would certainly look MUCH better behind the C3GSs - but what about sound?).

Would love any feedback from people with first/second-hand experience of these tubes...

Interesting: Typical 6SN7 heaters draw about 0.6A and the CV181z draws about 0.9A (900mA)

 

Not sure if the LD can handle that since the typical 6n6p types only draw about 750ma.

 

http://www.tnt-audio.com/accessories/shuguang_treasures_cv181_e.html


Edited by mab1376 - 3/3/14 at 1:30pm
post #5226 of 7565
Quote:
Originally Posted by mab1376 View Post
 

Interesting: Typical 6SN7 heaters draw about 0.6A and the CV181z draws about 0.9A (900mA)

 

Not sure if the LD can handle that since the typical 6n6p types only draw about 750ma.

 

http://www.tnt-audio.com/accessories/shuguang_treasures_cv181_e.html

You get 6.8V 2.5A filament current for the power tubes, or so the label says on my MK IV transformer.

post #5227 of 7565

Thanks Guys for all the Tips/suggestions and those Links.Again THANK YOU!

post #5228 of 7565
Quote:
Originally Posted by mab1376 View Post
 

Interesting: Typical 6SN7 heaters draw about 0.6A and the CV181z draws about 0.9A (900mA)

 

Not sure if the LD can handle that since the typical 6n6p types only draw about 750ma.

 

http://www.tnt-audio.com/accessories/shuguang_treasures_cv181_e.html

 

 

Quote:
Originally Posted by TrollDragon View Post
 

You get 6.8V @ 2.5A filament current for the power tubes, or so the label says on my MK IV transformer.

 

Yep...the 6N30P-DRs draw up to 900mA, and I haven't had any problems at all with 'em. So the Shuguangs would be fine - in that respect at least...I' m REALLY tempted!

post #5229 of 7565
Quote:
Originally Posted by hypnos1 View Post
 

 

 

 

Yep...the 6N30P-DRs draw up to 900mA, and I haven't had any problems at all with 'em. So the Shuguangs would be fine - in that respect at least...I' m REALLY tempted!

 

I'm sure you could always sell the one of the two you don't like, go for it!

post #5230 of 7565

Here is a nice pair of ECC803S (12AX7) still sealed in the Telefunken Boxes.

http://www.ebay.co.uk/itm/Pair-of-Telefunken-ECC803S-NOS-NIB-SEALED-12AX7-ECC83-/221372383074

post #5231 of 7565
Quote:
Originally Posted by TrollDragon View Post
 

Here is a nice pair of ECC803S (12AX7) still sealed in the Telefunken Boxes.

http://www.ebay.co.uk/itm/Pair-of-Telefunken-ECC803S-NOS-NIB-SEALED-12AX7-ECC83-/221372383074

Holy s....t  Batman !

post #5232 of 7565

Hi TD,

 

What's $2200 for a pair of tubes?

 

Here is a pair of Western Electric 300 B tubes that sold for $13,099.00 + shipping less than a month ago:

 

 

http://www.ebay.com/itm/Western-Electric-Engraved-Base-300B-Vacuum-Tube-matched-NIB-Pair-/251440711321?pt=Vintage_Electronics_R2&hash=item3a8b08c699&nma=true&si=niP8zVCLHLuw0mJaJfN5L2UzD9g%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557

post #5233 of 7565

mordy that's just Krazy...

 

We can use the ECC803S though, you'd be some hard pressed to put a 300B into play. :D

post #5234 of 7565
Quote:
Originally Posted by mab1376 View Post
 

Interesting: Typical 6SN7 heaters draw about 0.6A and the CV181z draws about 0.9A (900mA)

 

Not sure if the LD can handle that since the typical 6n6p types only draw about 750ma.

 

http://www.tnt-audio.com/accessories/shuguang_treasures_cv181_e.html

 

 

Actually the CV181Z has the same heater requirement as a 6SN7, 0.6A  at 6.3V.

The original CV181 draws 0.9A at 6,3V which makes it different to the 6SN7 which means that some amps designed for the 6SN7 may not be able to handle it.

 

http://grantfidelity.com/site/files/shuguang%20treasure%20tube%20spec%20cv-181.pdf

 

Shuguang Treasure Series Tube Specification: 
Model Number: CV-181Z Distributed by: www.grantfidelity.com
Filament Heating: 
UH 6.3 V
IH 0.6 A

post #5235 of 7565
Quote:
Originally Posted by mab1376 View Post
 

 

I'm sure you could always sell the one of the two you don't like, go for it!

 

Hey mab, Mephistopheles rides again! How can you tempt a poor fellow so?...How could I possibly part with the DRs? (Mind you, I do have a spare pair - unfortunately one has no writing on it, so had to take it on trust...will probably move them on...).

So it looks like it's adapter-making time once again - 'She who must be obeyed' thought all was just about wrapped up. As did I!! At least those nice fat pins will be much easier to work with than the C3gs'...

Ah well, I can always blame you, mon ami (not that I take much persuasion - they look SO beautiful!). With matched pairs going on ebay for not too much (one seller also with 'best offer'), methinks I am LOST (past saving, even)!

Here's a link to an interesting article comparing them to some of the best 6SN7s....

 

http://www.tnt-audio.com/accessories/shuguang_treasures_cv181_e.html

 

 

Edit:  ps. Have just put in an offer for $100 for matched pair...wish me luck!


Edited by hypnos1 - 3/4/14 at 8:42am
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