2359glenn | studio
Sep 28, 2019 at 11:45 PM Post #31,696 of 39,986
I've tested all 3 types. The ST grey glass sounds amazing ! :)

So my preference are ST grey glass, ST clear glass and CV1052 straight glass. However it's not night and day difference. All so very very good IMO. So donate to Langrex because Jim and I are best mates. :)
 
Sep 28, 2019 at 11:47 PM Post #31,697 of 39,986
I don't have GOTL. I have many TS 5998 including several clear top (1950 - 1960's) and WE 421a (1950, 1960, 1970, and 1980's) Clear top 5998 structurally is similar to same period WE 421a (smaller tail wire than 421), and sounds similar to 421a (a bit less bloom and stage) used in OTL amp. They are quite different from regular 5998.

Yo myphone ! Where have you been? It's been a long time my friend. I would recommend you to get a GOTL because she's a very lovely sounding Unicorn.
 
Sep 29, 2019 at 12:03 AM Post #31,700 of 39,986
Hello UT, have been reading you guys comments with great interest.

Well mate, it's been such a long time. Feels nostalgic when a familiar face shows up again. Trust you are well and still enjoying your music.

After Elise and Euforia, I got my GOTL in Dec 2017. For the first time, this amp stays while other gear have come and gone in that time. I love it that much.
 
Sep 29, 2019 at 12:09 AM Post #31,701 of 39,986
I have a beautiful Fivre 6N7G that tests perfectly in my tester

K, I have to bring out my Visseaux, Mazda, Fivre 6N7g again. It's been too long since the last listen of these tubes. My tubes have those vintage labels too. Even have a lot of 6A6, that sounds similar to the 6N7G.
 
Sep 29, 2019 at 4:20 AM Post #31,702 of 39,986
Longer listening test with the various EL32 / VT52 / CV1052. I'm very impressed with these tubes. So much so, I'm even considering using these as drivers in Berlin. The soundstage is wide and there is a nice 3D wrap around effect.

1st up is Mullard EL32 / VT52 (it's actually labelled as VT52) clear glass with 6 x GE 6BX7gt. What can I say. It's clear no doubt (pun intended) and there's no mistaking the EL32 tone. Volume at 12 noon and Verite is singing pretty loudly. Despite the relaxing tone, there's a bite to it. Just the right amount of tube tone. Euphonic and organic but not overly much. Bass has a nice impact and yet it's different from EL11. This is less in your face. Not perfect but I do like it a lot. Very hard to describe it but those who have heard EL32 will know.

https://www.ebay.com.au/itm/VT52-EL...072029?hash=item2ce01595dd:g:ezwAAOSwIbtb95lG

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Sep 29, 2019 at 4:27 AM Post #31,703 of 39,986
Next is the Mullard EL32 grey glass from India. These are the Taj Mahal. :) Very nice looking tubes. Tone has slightly more texture and slightly more lushness. You would be wondering if I can hear the difference between the grey glass and the clear glass. I can hear it alright. I think anyone can. Very interesting variation in tone. Like these a lot. As per the above clear glass, the grey glass with 6bx7s are very quiet. Super impressed. Can't hear any noise !!! Volume is similarly at 12 noon for my comfortably loud listening level. So don't forget the Taj Mahal. Majestic tubes. :)

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Sep 29, 2019 at 4:40 AM Post #31,704 of 39,986
Lastly the Mullard CV1052 from Langrex. These had the sellers notes:-
  • EL32/CV1052 MULLARD
  • TESTED NEW AND UNUSED
  • MADE IN GREAT BRITAIN
  • PACKED IN ORIGINAL GOVERNMENT BOXES
  • MO2 B9C1 MULLARD CODE ON GLASS
  • 1969 DATE CODES
These are the skinny EL32. To my utter surprise, these skinnies with 6bx7s are the quietest of them all !!! Not only that. There's a supreme clarity, speed and agility with these skinnies. I'm super impressed with the tone. I'm quite happy with just these !!! At GBP 4 each from Langrex, it's a crime to be sounding this good !

So my gear - Yggdrasil, GOTL + Mullard EL32 / CV1052 plus 6 x GE 6bx7gt, Verite Pheasant wood LTD. I think I could have found my favourite tone of all time. Now the question, Glenn ( @2359glenn ) how can I have the EL32 or EL11 as drivers in Berlin. I want them in the amp but with a choice to use either as drivers and Telefunken EL12 spez as power tubes.

https://www.ebay.com.au/itm/EL32-CV...m3cb6d18dea:g:JFQAAOSw7Kldep3F&frcectupt=true

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Sep 29, 2019 at 5:47 AM Post #31,706 of 39,986
There are countless CV1052 on eBay. It would be fun to have a special OTL amp to use 6 x CV1052 in strapped triode mode as power tubes. Drivers could be another pair of CV1052 or a 6sn7 or EL11 / EL3N.
 
Sep 29, 2019 at 6:48 AM Post #31,707 of 39,986
There are countless CV1052 on eBay. It would be fun to have a special OTL amp to use 6 x CV1052 in strapped triode mode as power tubes. Drivers could be another pair of CV1052 or a 6sn7 or EL11 / EL3N.

Yo UT...when I was experimenting with the EL32 (before being trounced by the EL38 and especially EL39 as powers!), 2 as drivers to 2x powers in Euforia was really good but needed the more powerful EL12 Spezial as power to do the EL32 drivers justice. However, I'm sure six 32s as powers would perform much better than 2! And that price for the straight-sided version sure is an unbelievable bargain lol.
 
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Sep 29, 2019 at 8:24 AM Post #31,708 of 39,986
I don't have GOTL. I have many TS 5998 including several clear top (1950 - 1960's) and WE 421a (1950, 1960, 1970, and 1980's) Clear top 5998 structurally is similar to same period WE 421a (smaller tail wire than 421), and sounds similar to 421a (a bit less bloom and stage) used in OTL amp. They are quite different from regular 5998.

Sounds like a great collection, @myphone . Are these being used in FA amps? I have owned many 5998s myself, including an oddball 421A labeled Tung-Sol, but never a clear top Tung-Sol. To my ears, there are some sonic differences between 5998s. Like I said, my preference are the copper rod version, but the Western Electric 421A is the best I own from the family. I also own an early model 1950s gray plate 421A that sounds excellent, but is prone to arcing.

I have to admit though, I use them less often than I used to for fear of arcing, but they are great sounding tubes. These days a Tung-Sol 7802 pair or quad or a 7802/6BX7 combo is my preferred power tube loadout in the GOTL.
 
Sep 29, 2019 at 10:01 AM Post #31,709 of 39,986
K, I have to bring out my Visseaux, Mazda, Fivre 6N7g again. It's been too long since the last listen of these tubes. My tubes have those vintage labels too. Even have a lot of 6A6, that sounds similar to the 6N7G.

These are some of my favorite tubes, M, the Visseaux and Fivre 6N7G are very nice, get those babies out of storage!!! Have not tried the 6A6, may have to give them a try.
 

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