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In the Forum: Melquiades Amplifier
In the Thread: Single-stage Melquiades vs. DHT amps

Post Subject: If one DHT is good, two must be better?Posted by Romy the Cat on: 11/30/2008

nl wrote:
I don't know. Some people like …. supposedly mixing the appealing qualities of each

Well, I understated all of it but my mind works diffidently in audio. I do not feel that going for some kind of “magic” vintage tubes is a direction that I would feel too enthusiastic. In many instances the “special” reported qualities of DHT tubes are due to the fact that in IDHT cathodes are large fixed and heavy but in DHT they are light and flimsy wires. Those wires, being driven by filaments (particularly by AC voltage) are shaking and create modulations that randomize the electrons flow in DHT. Also, in DHT the electrons flow dispatched not from uniformed nice cathode but from many 3-D wires that make the arriving to anode not… time-aligned and more unsystematic. BTW, this is one of the reasons why many DHT people prefer the 50-60 years old tubes – older tubes have more “hanged” cathodes that got longer by gravitation and consequentially have more room for “shaking”. If to look at the subject slightly deeper then it would be obviously that some things might be “done” with it. I will be doing next weeks two very interesting experiments that might tune out to be very promising.

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