Rerurn to Romy the Cat's Site


In the Forum: Melquiades Amplifier
In the Thread: The one-stage Melquiades.
Post Subject: The core materials, the problems and the solutions...Posted by Romy the Cat on: 4/30/2007

 cv wrote:
Hi Romy, I dunno if you mean the C-core materials itself or the completed transformers... if the former (perhaps a poor term in this context), then http://www.elnamagnetics.com have what you are looking for. Seach for AMCC - these are the Metglas C-cores you are after...

Well, Bud do not mind to wind HF transformer if e find an interesting raw core… I hardly doubt I will find anywhere a ready to go transformer with my custom DSET HF specifications…

 cv wrote:
Also, if you are able to limit the LF before the power stage,

Well this it VERY big subject. As you remember in two stages Milq I was not able to high pass the amps at line level as it created very wrong sound. I have a number of hypnotizes about the resume and the single stage amp would be a good playgroup to try it. I do intend to high pass it if I could. There is a great chance that in the two stages Melquiades the high pass was not possible die to the application in the given topology. I spent a LOT of time to experiment with it.

 cv wrote:
I would very strongly suggest trying a custom OPT from Sowter in the UK on a 100% mumetal EI core for the S2.... expensive but something magical about the sound.

Chris, can you point to the specific model of the Sowters OPT?

 cv wrote:
If we agree on the spec beforehand, we may even be able to come to an arrangement where I purchase them from you if you don't like them so you're not risking much. Feel free to PM me if you are interested.

Point out the exact model. It is not about the price but rather about the quality of result. I would rather have Bud’s, Lundahl and Sowter transformers for S2 in order to see which will work better. Interesting is that I feel that the S2 channel will be the most prominent transformer in the amp… the only concern I have that my experience with amorphous core is very positive and I afraid that I will not have the dynamics and the “harmonics not affected speed” with any none-amorphous lamination… BTW, if you propose to “agree on the specs” then does it mean that you will be trying the single stage Milq

Rerurn to Romy the Cat's Site