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Re: What make a transformer good ?

Posted by bpur (M) on February 21, 2007 at 14:01:31

In Reply to: What make a transformer good ? posted by Rune on February 21, 2007 at 02:35:00:

Rune,

All output transformers are good. Everyone of them. The original one's that come from the commercial marketplace during the 40's and 50's were designed for a specific set of tubes with a specific set of components in a specific circuit by some truly smart and knowledgeable designers of transformers. These narrowly defined transformers can work amazingly well, if you use them as originally intended. So, if a particular transformer does not sound "good" it is likely due to not being used in the circumstances it was designed for and even the multi use transformers have a "best" set of operating parameters.

Some manufacturers did and others still do provide multi tap wider usage products for the DIY market and some of those even sound quite good. The current range of manufacturers also supply some of this need with Lundahl probably being fore most. Sowter makes very very good products also.

However, what you need to do, to get the best performance from anyone's offerings is to adapt your circuit, components and tube manufacturer choice to the available off the shelf products, or go in search of someone willing and able to flex their designs to suit your needs.

Means you really are going to have to spend some time in driver circuit performance modification, feeding am output power circuit you know and trust. Then you need to move on to power tubes and outputs and explore that ground, in one topology at a time.

Just asking for who is good is not going to get you anything but frustrated, primarily because there are no words you can use to describe what you are personally looking for, to a transformer designer. You need to be able to specify the parameters in the terms of usage that allow any competent designer to characterize your needs in electrical terms and functions.

danlaudionut is quite correct when he says use what you are familiar with, but you need to use it with the intention of exploring the circuit designs and components that surround and modify what the known set up provides. Lot's of very interesting work if you are up for it.

Bud

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