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2359glenn | studio - Page 381

post #5701 of 10672
Quote:
Originally Posted by Xcalibur255 View Post
 


Not yet, decided to listen to all the 45s together so I could decide which I like.  I only have the 3 pairs so the tung sol was the last.  Then the 46 and after that I'll just leave whichever sounds best in the amp for a fair while. 

 

Do you think the 6BY5GA would sound any different from the 6BY5G Glenn?  Is the voltage drop the same?  The G style is surprisingly hard to find but the GA are still rather common.  I need to stock up and see if I can find a pair that doesn't make that whistling sound.


Are you sure it is not the 45s making the sound?

I will look and see if I have any more 6BY5G sitting around if I do I will send them to you.

will look tonight.

post #5702 of 10672

It's hard to tell since they're so close together, but if it is the 45s then every pair has done it.  It sounds like the 17Khz whine that old tube tvs made, you can hear it anywhere in the room.  Just comes and goes at random.  I figured since the 6by5 was a tv damper tube it was the likely suspect.  I have a pair of 6by5ga I can try but I haven't done it yet, I was planning to do the swap when I tried the 46 tubes that way they could both burn in at the same time.

post #5703 of 10672
DG, is there a difference in the internals of the straight and curved base GEC 6AS7G?
post #5704 of 10672

The straight bases are rarer and supposedly sound better.

post #5705 of 10672
Quote:
Originally Posted by rosgr63 View Post
 

The straight bases are rarer and supposedly sound better.

 

Most people say its the other way around. I have the straight based ones. Bought them for 17€.

post #5706 of 10672
Curved is supposed to be rarer and slightly better.

Both seem to have the exact same internals. I found little difference in sound, maybe the curved are slightly warmer, but might just be placebo. Anyways both excellent tubes, i think theyre basicslly the same, just curved looks nicer and probably rarer too
post #5707 of 10672
Oh. I thought the curved were the gems.

Is there any difference between 1834s and 6AS7Gs?

Thanks Stavros.
post #5708 of 10672
The GECs are perfect in Glenn's OTL with a GZ37.

I haven't rolled the 6SN7 much.
post #5709 of 10672
Quote:
Originally Posted by dminches View Post

Is there any difference between 1834s and 6AS7Gs?

 

A1834 is just the MOV type code.

post #5710 of 10672
A1834/6as7g/cv2523 are the same

Which gz37? The mullard cv378 or the cossor high wycombe version which is supposably better and looks different?
post #5711 of 10672
Quote:
Originally Posted by Dubstep Girl View Post
cossor high wycombe version?

Lovely looking tubes, those. 

post #5712 of 10672
The cossor and maybe the Brimars are hard to come by now. They appear on ebay once a while and then it usually ends with a high price. My only two gz37 from cossor cost me 110usd each. A steal at today's market.
post #5713 of 10672
Quote:
Originally Posted by Neogeo333 View Post

The cossor and maybe the Brimars are hard to come by now. They appear on ebay once a while and then it usually ends with a high price. My only two gz37 from cossor cost me 110usd each. A steal at today's market.

 

omg

 

yeah impossible to find at those prices now, all 300-400+ $

 

also the GEC U52 is pretty expensive and in the same price range.

post #5714 of 10672
Quote:
Originally Posted by Dubstep Girl View Post

A1834/6as7g/cv2523 are the same

Which gz37? The mullard cv378 or the cossor high wycombe version which is supposably better and looks different?

 

The Mullard CV378.  I don't think I have paid as much as $200 each ever.  Maybe $150, and that was relatively recent.

post #5715 of 10672

yeah i paid about $100 for mine, a regular mullard cv378 (skinny bottle)

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