Rerurn to Romy the Cat's Site
In the Forum: Melquiades Amplifier
In the Thread: DHT driver & input
Post Subject: DHT's & TentlabsPosted by guy sergeant on: 2/1/2007
The references to inertia and lightness are not to do with how a DHT works electrically but to do with how sounds reproduced by them 'can' be ie without smearing or overhang. Its a characteristic I hear in live unamplified music and one that is endearing to me. I may be wrong to presume that it can be captured by the recording process but I don't think so.
I don't really have a yardstick for indirectly heated triode power amps. All of the ones I usually hear are godawful OTL designs although as I said before, I did once hear a very pleasant 6336 based amplifier. I've heard various 6C33 based amplifiers at shows but have never found them particularly interesting but then shows aren't the best places to form conclusive opinions. I've heard plenty of poor systems using DHT's at shows too.
With regard to the Tentlabs website, I don't get any pop-ups from it and I pay little attention to what reviewers say. We've discussed this before, reviews & magazines are infotainment and shouldn't be irritating or be taken seriously. You have to try things that seem interesting yourself, not rely on the hearsay of someone with entirely different priorities & questionable (to you) needs. The filament supplies looked like a sensible solution to an awkward problem, I tried them & they worked for me.
Your power supply design approach seems a little dogmatic to me (and won't work in this application in my view) however if it works for you, stick with it. I'm sure there are many people in the US who use all DHT power amplifiers and one or two of them might even be persuaded to submit them for your appraisal. If they do, ask them how they have implemented the filament supplies.Rerurn to Romy the Cat's Site