I saw this on E-Bay and wondered what other people think.
£1,980.00
Would you buy them over known high end manufacturers?
(emphasize not my listing!)
SE Output Transformers pair 3.5k 2.5k 6k for 300B,2A3,45,PX4,PX25 tube | eBay
£1,980.00
Would you buy them over known high end manufacturers?
(emphasize not my listing!)
SE Output Transformers pair 3.5k 2.5k 6k for 300B,2A3,45,PX4,PX25 tube | eBay
Unfortunately the link doesn't work.
Anyone who pays £2000 for 2 transformers needs their head seeing to.
Guess I need to make my appointment with the psych, because the OPTs on my amps were more than that.
PS: I consider it money very well spent. Guess that's symptom #2.
those look familiar. at those prices this one's gotta sell for 30K.
http://www.diyaudio.com/forums/tubes-valves/225623-most-exotic-set-power-amplifier.html
http://www.diyaudio.com/forums/tubes-valves/225623-most-exotic-set-power-amplifier.html
Hi,
No comment, sans paroles, sin palabres, sprachlos......
A 845 Mono block?
Ciao,
No comment, sans paroles, sin palabres, sprachlos......
An externally hosted image should be here but it was not working when we last tested it.
A 845 Mono block?
Ciao,
Hi,
Moved maybe, not removed:
Actually, if you take into account all the materials (copper isn't exactly cheap) and man hours that go into such a OPT, the asking price is quite reasonable.
Hats off to Mr. Petavgeris.
Ciao,
Looks like the listing has been removed!
Moved maybe, not removed:
In eBay search on "SE Output Transformers Pair"
Actually, if you take into account all the materials (copper isn't exactly cheap) and man hours that go into such a OPT, the asking price is quite reasonable.
Hats off to Mr. Petavgeris.
Ciao,
The materials don´t cost that much, in my opinion the price is justified by the skill with which they are made.
All the same, I think that believing such a transformer will have a proportional impact on sound is very foolish, so from a value point of view nobody would should use them. Although as others have said, if I had such money to spare why not buy them?
Edit: Reading the description on ebay the seller says: "coils are wound with directional premium quality copper magnet wires", so i changed my mind. I´d never buy from an audio seller who spreads snake-oil by suggesting that copper wire is "directional", and such "directional" wire is better than regular one.
I´d like to know what Mr. Petavgeris, who evidently knows about transformers, was thinking when he wrote that.
All the same, I think that believing such a transformer will have a proportional impact on sound is very foolish, so from a value point of view nobody would should use them. Although as others have said, if I had such money to spare why not buy them?
Edit: Reading the description on ebay the seller says: "coils are wound with directional premium quality copper magnet wires", so i changed my mind. I´d never buy from an audio seller who spreads snake-oil by suggesting that copper wire is "directional", and such "directional" wire is better than regular one.
I´d like to know what Mr. Petavgeris, who evidently knows about transformers, was thinking when he wrote that.
Hi,
Not wanting to start the umpteenth debate on this thorny topic but wire is directional when drawn at the cable factory.
Ciao,
I´d never buy from an audio seller who spreads snake-oil by suggesting that copper wire is "directional", and such "directional" wire is better than regular one.
Not wanting to start the umpteenth debate on this thorny topic but wire is directional when drawn at the cable factory.
Ciao,
Hi,
Not wanting to start the umpteenth debate on this thorny topic but wire is directional when drawn at the cable factory.
Ciao,
Yes, tends to go down the production line instead of up!
The manufacture say this about the performance:
The response graphs relate to measurements taken with 700 ohms of output resistance of the signal generator unit and 3.5 kOhms secondary load at various frequencies, without DC biasing current but results may vary depending on output impedance of the signal generator and the load impedance on the secondary coil side. As the plate resistance of the tube rises or the secondary load is getting lower, it is unavoidable to experience somewhat narrower frequency response, as this is a result of mother nature laws. In practical terms, load linearity remains absolutely ruler flat from subsonics up to ultrasonics, for a wide range of applications! And there exists no other output transformer in the international market capable of such extreme measurable and audible characteristics. If you consider a real audio aficionado, it is certain that you already know this!
Any comments?
The response graphs relate to measurements taken with 700 ohms of output resistance of the signal generator unit and 3.5 kOhms secondary load at various frequencies, without DC biasing current but results may vary depending on output impedance of the signal generator and the load impedance on the secondary coil side. As the plate resistance of the tube rises or the secondary load is getting lower, it is unavoidable to experience somewhat narrower frequency response, as this is a result of mother nature laws. In practical terms, load linearity remains absolutely ruler flat from subsonics up to ultrasonics, for a wide range of applications! And there exists no other output transformer in the international market capable of such extreme measurable and audible characteristics. If you consider a real audio aficionado, it is certain that you already know this!
Any comments?
Hi,
All copper wire drawn or pushed trough a die is inevitably directional.
Ciao,
Probably it makes no sense to use directional copper to use with an AC signal...
All copper wire drawn or pushed trough a die is inevitably directional.
Ciao,
Last edited:
In practical terms, load linearity remains absolutely ruler flat from subsonics up to ultrasonics
The manufacturer seems to have forgotten that louspeekers are anything but a fixed load in the audio spectrum, at least that´s what I interpret.
The response graphs relate to measurements taken with 700 ohms of output resistance of the signal generator unit and 3.5 kOhms secondary load at various frequencies, without DC biasing current
It´s obvious he is testing the transformers in the most favourable conditions for best specs, but at least he is kind as to point out he did so
Hi,
Not wanting to start the umpteenth debate on this thorny topic but wire is directional when drawn at the cable factory.
Ciao,
Ok, wire is directional. So using it it one way or the other way round is a major factor affecting sound quality? I don´t think it is, or better yet, I KNOW it is not.
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