LampizatOr Horizon - Tube Rolling Paradise

[Steve williams]

I’ll have a better one tomorrow. It is small It’s the eBay photo

 

[Steve williams]

Here are better photos. Box said 1943

 

[John T]

Here are better photos. Box said 1943
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Interesting; On My Telefunken AZ12 Mesh, The Plate appears much longer than on the Valvo...EDIT After looking more closely they appear very similar...

 

[John T]

This is pretty cool. In the box the text is patent information. And also in the box was this cartoon. My German is a little rusty but if someone who does read German can translate I would appreciate it. Its a little hard to make out...

 

[Steve williams]

Interesting; On My Telefunken AZ12 Mesh, The Plate appears much longer than on the Valvo...EDIT After looking more closely they appear very similar...

from what Understand, as I have not done the comparison, there is a sonic difference between the TFKN AZ12 silver mesh and the Valvo AZ12 black mesh, but as I said before these tubes are so close it likely matters not

 

[Golum]

Interesting; On My Telefunken AZ12 Mesh, The Plate appears much longer than on the Valvo...EDIT After looking more closely they appear very similar...

John more interesting are those two thingies on the shelf - hammer and the scul........

 

[keithc]

John more interesting are those two thingies on the shelf - hammer and the scul........

Well you know, some of those rare rectifiers can only be pried from their owners' fingers after death....

 

[John T]

John more interesting are those two thingies on the shelf - hammer and the scul........View attachment 147119

You're half right Goran! Yes that is a skull, I can't divulge the "gentleman's" name or I will incriminate myself. The only thing I can say is he "was" in the audio business. That other object is a small level. If it was a hammer I could understand you're concerns! Hammer/Skull together! Not a good combo! LOL!!!! Now that I look at the level it could be mistaken for a primitive hammer!

 

[Sampajanna]

What are you using for weights on your Horizon and do they make a big difference, John?

 

[Golum]

What are you using for weights on your Horizon and do they make a big difference, John?

Usually hammer - very handy tool if you think about it…

 

[John T]

What are you using for weights on your Horizon and do they make a big difference, John?

Those are some weights I made. I wanted something a little different and aesthetically pleasing. TBH I'm not sure how much it helps. I do steel sculpture so I always have different metals laying around. I cut these from some stock I had...

 

[Sampajanna]

Those are some weights I made. I wanted something a little different and aesthetically pleasing. TBH I'm not sure how much it helps. I do steel sculpture so I always have different metals laying around. I cut these from some stock I had...

That is very cool, John. They look neat so good fit. Love the skull as well!

 

[John T]

That is very cool, John. They look neat so good fit. Love the skull as well!

Thank You very much, something a little different. Because the tubes are vertical I wanted the weights horizontal...

 

[Ron Dijkstra]

All, I like to report a costly and negative experience; I installed a new NOS Valvo G2504 and a brand new TP adapter. The moment I switched on my H360 I saw a bright light in the tube and my (expensive) fuse was blown. I do not know yet if it was the Tube or the TP Adapter or the combination with a H360.

My question; does anybody had a simular experience? Any tips or idea's?

P.S. Please not that Lampizator does not support tubes wich are not certified and in case of problems you loose your warranty. Lukas of Lampizator already send out a mail regarding the use of non certified tubes that you loose your warranty... Just FYI...

 

[takacs75]

We don’t have to guess. You can send me the tube and adapter to test them.
I know about some cases where similar things happened. After testing the tubes and adapters we realized that it wasn’t either a tube or adapter failure. If a rectifier or the transformer is out of specifications it can cause a dac failure. The same tube and adapter I’ve been using for months in my Horizon caused a dac failure in my friends Horizon. The chance is not high but not zero. Although I know about cases where an 5U4G caused dac failure

 

[AudioHR]

We don’t have to guess. You can send me the tube and adapter to test them.
I know about some cases where similar things happened. After testing the tubes and adapters we realized that it wasn’t either a tube or adapter failure. If a rectifier or the transformer is out of specifications it can cause a dac failure. The same tube and adapter I’ve been using for months in my Horizon caused a dac failure in my friends Horizon. The chance is not high but not zero. Although I know about cases where an 5U4G caused dac failure

What a nice offer! I would think all Horizon owners would be interested in knowing what caused this glitch.
Following for a friend before I take a plunge into this deep end

 

[keithc]

What a nice offer! I would think all Horizon owners would be interested in knowing what caused this glitch.
Following for a friend before I take a plunge into this deep end

I think there's a large number of WBF members, myself included, who have safely rolled numerous tubes across multiple Lampizator DACs and would not hesitate to do so again. Testimony to this would be the almost 200 page threads on various Lampi tube rolling. And many of us have had perfect experiences with numerous TP adapters + tubes thanks to @takacs75 and would vouch for this.

Obviously there's a risk to tube rolling, but I think that's par for course even if you buy a replacement 5U4G. I wouldn't want to own a tube gear if I cannot tube roll, there's little point to that.






Few pics just for perspective of the YEARS of audio heaven we have gained from tube rolling across multiple Lampi DACs!!

 

[John T]

Laszlo's adapters are NOT the issue...

 

[AudioHR]

I think there's a large number of WBF members, myself included, who have safely rolled numerous tubes across multiple Lampizator DACs and would not hesitate to do so again. Testimony to this would be the almost 200 page threads on various Lampi tube rolling. And many of us have had perfect experiences with numerous TP adapters + tubes thanks to @takacs75 and would vouch for this.

Obviously there's a risk to tube rolling, but I think that's par for course even if you buy a replacement 5U4G. I wouldn't want to own a tube gear if I cannot tube roll, there's little point to that.

View attachment 148035
View attachment 148037
View attachment 148038


Few pics just for perspective of the YEARS of audio heaven we have gained from tube rolling across multiple Lampi DACs!!

Very cool! And I agree with you completely about the joys of tube rolling.

 

[Steve williams]

All, I like to report a costly and negative experience; I installed a new NOS Valvo G2504 and a brand new TP adapter. The moment I switched on my H360 I saw a bright light in the tube and my (expensive) fuse was blown. I do not know yet if it was the Tube or the TP Adapter or the combination with a H360.

My question; does anybody had a simular experience? Any tips or idea's?

P.S. Please not that Lampizator does not support tubes wich are not certified and in case of problems you loose your warranty. Lukas of Lampizator already send out a mail regarding the use of non certified tubes that you loose your warranty... Just FYI...

We don’t have to guess. You can send me the tube and adapter to test them.
I know about some cases where similar things happened. After testing the tubes and adapters we realized that it wasn’t either a tube or adapter failure. If a rectifier or the transformer is out of specifications it can cause a dac failure. The same tube and adapter I’ve been using for months in my Horizon caused a dac failure in my friends Horizon. The chance is not high but not zero. Although I know about cases where an 5U4G caused dac failure

Laszlo's adapters are NOT the issue...

Bottom line is there are countless readers here who are using have used TP adaptors with the Valvo G2504 without any issue whatsoever. Thankfully , like John T I can safely assert that the TP adapters are not the issue. I have now at least 7 different TP adapters for the H360 and find them to be the best of the best