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In the Forum: Melquiades Amplifier
In the Thread: Herbie's Hal-O Tube Dampers
Post Subject: Herbie's Hal-O Tube DampersPosted by JJ Triode on: 9/21/2007
Romy,
I noticed in several photographs of the various Melqs that you are using the Hal-O dampers on your driver tubes and sometimes on the regulators. The ones in your pictures are the earlier versions of Herbeleins' products with the thick polymer rings holding the elastomer pads (I think the black rings were made of something called Nylatron, while the white rings were teflon).

I recently tried out the newer versions of the Hal-Os which have metal rings in place of polymer (there are two different kinds made of different alloys but they are said to perform similarly.) The pads have been revised too. Anyway I find these metal-ringed Hal-Os to perform MUCH better than the teflon-ring type. Rather than attempt to desribe the benefits I would like to suggest that you try a few and give us your own impressions. You can even tune them by adjusting the tension in the ring or moving them up or down on each tube. I find them very good even on output tubes.

There is nothing to lose since Herbie lets you return them within 90 days, as you probably know. I hope they work out for you.

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