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ECC32 Tube Addicts - Page 4

post #46 of 104
Quote:
Originally Posted by dannie01 View Post


Mike, I love very much the sound of the ECC32 and have very similar impression like you do. It's about 100hrs mark of run-in. They really sound good in my WA5LE with HD800 and LCD-2, I sometimes connect the LCD-2 in high impedence output and it sound as good as in low output. And there is no heat issue with the ECC32.
 

 



Dannie,  I'm starting to notice a heat issue.  Yesterday was the first full day I played these and the WA22 power supply was the warmest it has ever been.  I could place my hand on it and it was not too hot that I could not leave it there.

 

Also, I have to set the impedence output to low as this tube really puts out the power.  I have only tried them with my HD800's and have not gotten around to hearing them with my LCD2's.  Today I put my TSRP's back in and noticed that the sound was a little "easier" to listen too, not so loud.  However I am breaking in a GZ37, so there is that.

 

Later today I'm going to pair the ECC32's with the EML as I think the GZ37 is also a very powerful tube.  I imagine the WA5 loves those more powerful tubes.  It seems sometimes that the WA22 needs lesser powerful tubes and I am not sure why, but this is an impression I am getting lately that the more laid back tubes seem to work better in the WA22.  However I am using an HD800 for most of my listening and I think if I were using the LCD2 more, those more powerful tubes might be better.  But this is just an impression that I am forming and am not convinced yet.

post #47 of 104
Quote:
Originally Posted by Skylab View Post

Me either.


No probs guys thanks.

 

But i'm surprised you's have never actually heard of it, as it has been described as "probably the best small signal pentode ever made" used for German telecommuications, they are apparently the ultimate tube for high end pre amplifiers, and have 10,000 hours lifespan. Very high amplification and very low noise, microphonics. Just FYI.

 

I wish I knew more about electronics... should have stuck in at school!    

post #48 of 104

Honestly I never heard an amplifier with them, but that doesn't mean there not good.  The 6SN7 or ECC32 are my cup of tea for small signal application.  Amplifiers using 6SN7 give you tons of voicing options.

post #49 of 104
Quote:
Originally Posted by LugBug1 View Post





No probs guys thanks.

 

But i'm surprised you's have never actually heard of it, as it has been described as "probably the best small signal pentode ever made" used for German telecommuications, they are apparently the ultimate tube for high end pre amplifiers, and have 10,000 hours lifespan. Very high amplification and very low noise, microphonics. Just FYI.

 

I wish I knew more about electronics... should have stuck in at school!    


Well, I'm not aware of any audio amp that uses them, although of course there may well be some, but they are clearly far from common. If I read the data sheet right (and there is no guarantee of that since it is only available in German), it's a 30 V tube!!! That would require a very special power supply.

But they are available in quantity NOS for $17 each, so doesn't strike me as being very expensive to get a backup set.
post #50 of 104
Quote:
Originally Posted by Skylab View Post



Quote:
Originally Posted by LugBug1 View Post





No probs guys thanks.

 

But i'm surprised you's have never actually heard of it, as it has been described as "probably the best small signal pentode ever made" used for German telecommuications, they are apparently the ultimate tube for high end pre amplifiers, and have 10,000 hours lifespan. Very high amplification and very low noise, microphonics. Just FYI.

 

I wish I knew more about electronics... should have stuck in at school!    




Well, I'm not aware of any audio amp that uses them, although of course there may well be some, but they are clearly far from common. If I read the data sheet right (and there is no guarantee of that since it is only available in German), it's a 30 V tube!!! That would require a very special power supply.

But they are available in quantity NOS for $17 each, so doesn't strike me as being very expensive to get a backup set.



I'll have to look around because they were on ebay uk for £80 a pair..! 30v wow! no wonder my amp gets hot ha ha, I have seen a few pre amps with them in, just when I googled images but theres not many. I've posted a pic on the 650 appreciation thread (its in the last couple of posts) if you want to take a peak at my amp.

 

Cheers for your time guys

 

post #51 of 104
Thread Starter 

Added a Full Black Glass Colour photo

post #52 of 104

rosgr, I am interested in the sonic differences if any that you have noticed between the various ECC32s.

post #53 of 104
Thread Starter 

Wedge there might be some minor differences depending on the getter.

I would not consider them that great.

Talking to an ex Mullard Engineer, he laughed when I mentioned it.

Some getters command very high prices so for collectors they might be more critical than for audio users.

When I finish my 6SN7 evaluation I might spend more time with my ECC32s and get a better feel.

 

post #54 of 104
Hi guys, sorry for reviving this thread, but I felt this was the best place to ask. I recently acquired a pair of ECC32s but I'm unsure of the manufacture date and factory. There is no brand labelling, but the UK government arrow is faded. The glass is half black, the top mica is circular with two side supports, the getter is solid cap and the base is black. The codes on the glass near the base are "1185 MLA" and "1185 MRA". Any ideas about the vintage of these tubes?
post #55 of 104

Pics would help ;)

post #56 of 104

Hi Skylab, pics as requested:

 

ECC32

 

ECC32 top mica

 

ECC32 with solid cap getter

 

ECC32 with date code

post #57 of 104

1185 is the pre-1955 Mullard tube type code designation for the ECC32. 1955 and beyond they went to a common two-letter tube type code designation with Philips, and "EN" was the tube type designation for the ECC32 under that schema.

 

MRA is tougher to decipher, but I THINK it is Mullard (manufacturer), R = January 1952, A = Batch 0 (the first of the year).

 

Two of my ECC32 say "1185 MZA", the Z I believe indicating August of 1952.  It is possible, however, that in both cases, the tubes were made in 1955 and not 1952.

post #58 of 104

Hey buddies, I need you experts' advise, please.

 

I have problem with my pair of Mullard ECC32, I hear DISTORTION frown.gif from my WA5LE whatever genre of music I played with it. I then swapped them into the Sylvania chrome top short bottle, everything become fine and I can hear nice music from the LCD-2 as usual.

 

Is it the Mullard ECC32 really a problem for WA5LE or my pair of tube are going bad that fast, I only play them for only few months but I don't remember how many hrs exactly they're with the amp, maybe few hundred of hrs, not sure. I will give it a try again tomorrow to confirm if it is really the problem of the Mullard.

 

Does anyone have similar experience with their Mullard in the Woo? 

 

PS. I post this in the Woo amp owners' unite, too.

post #59 of 104
Quote:
Originally Posted by dannie01 View Post

Hey buddies, I need you experts' advise, please.

 

I have problem with my pair of Mullard ECC32, I hear DISTORTION frown.gif from my WA5LE whatever genre of music I played with it. I then swapped them into the Sylvania chrome top short bottle, everything become fine and I can hear nice music from the LCD-2 as usual.

 

Is it the Mullard ECC32 really a problem for WA5LE or my pair of tube are going bad that fast, I only play them for only few months but I don't remember how many hrs exactly they're with the amp, maybe few hundred of hrs, not sure. I will give it a try again tomorrow to confirm if it is really the problem of the Mullard.

 

Does anyone have similar experience with their Mullard in the Woo? 

 

PS. I post this in the Woo amp owners' unite, too.



 I replied at the Woo Owner's tread.

 

post #60 of 104
Quote:
Originally Posted by musicman59 View Post

 I replied at the Woo Owner's tread.

 



Thanks again, musicman.

 

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