At last! Two choices of very reasonably priced vacuum tube dampers that not only damp microphonic-inducing vibration, but cool the tube as well. Both tailored to specific needs, both solve multiple audiophile vacuum tube issues, and both are pleasing visually for open tube design equipment. These are available for both 7 and 9 pin miniature tubes. 9 pin tubes include the 12AX7, 12AT7, 12AU7, 6DJ8, 6922, 6BQ5/EL84, 6CA4/EZ81, and other glass types having the 9-pin base. The 7 pin types include the 6AU6A, 6AQ5, 6005, and the 6X4, among others of the 7-pin glass type. We also have dampers intended for high bulb temperature tubes like the 5687 and the 6BQ5/EL84. Please specify which tubes you want to use the dampers on and we will supply you with the appropriate type.
This elegant ring of solid brass will solve most vibration, microphonic, and audio image problems. Just 1/4 inch wide and gently tapered from the center to each edge, this gleaming ring of solid brass slips onto any 7 or 9 pin miniature glass tube. The special internal cushion of heat-resistant plastic "fingers" grips and holds the tube, damping the vibrations that may be present. This pulls the opposite side of the ring into intimate contact with the glass, where the metal wicks away the heat and radiates it away from the tube. Our listening tests with The Brass Ring have discovered it opens up recorded music, and surrounds each instrument with air in a wide and deep soundstage. Most other tube dampers are not substantial enough to effectively damp vibrations really well and offer no cooling, and other tube coolers do nothing for damping vibration. The Brass Ring does both. Only metal tube dampers have the mass to halt vibration, and our special shock absorbing grip system does it especially well. Being metal, it is a perfect tube cooler, and good cooling may extend the lifespan of your valuable tubes. Custom handmade and available ONLY from Brent Jessee Recording & Supply, Inc. Specify 9-pin or 7-pin size when ordering. Also please specify if the dampers will be used on high bulb temperature tubes such as the 5687, 6BQ5/EL84, 6CA4/EZ81, 6X4, etc. as we have a high-temperature version of the metal damper available using a pure Teflon cushion insert.
CLIENT COMMENTS: "Hi, I received the Brass Rings today and I have to say their effect was pretty remarkable and a big improvement over the Teflon rings I had tried. Much improved focus, imaging, and dimensionality. If I had more than one tubed component, I would buy more of your Brass Rings! Thanks for a great product."
Regards,
PB
Stop tube vibration, microphonics, and electromagnetic hum problems dead with the massive, solid copper "Copper Stopper" tube damper. This unique tube damper/tube cooler is the most massive on the market. Made entirely of solid cast copper, it completly sheaths the tube within it's sixteenth-inch thick walls. A long cushion strip inside contains dozens of shock absorbing "fingers" that grip the tube gently. The combination of the heat resistant cushion, plus the sheer mass of solid copper surrounding the tube eliminate even stubborn ringing or microphonic problems. The damper can be adjusted up or down on the tube, effectively shielding the plates completely. It can also be lowered completly to the point at which it touches the metal chassis of your equipment, effectively grounding out stray RF or electromagnetic hum fields. It's large outer diameter effectively doubles the heat-radiating surface area of the tube, and it vents heat away from the tube like no other cooler can. Our listening tests reveal The Copper Stopper brings the music into sonic focus, puts air around the perfectly placed instruments, and both deepens and widens the soundstage. Forget those puny wire or plastic tube dampers, or ineffective finned tube coolers. This burnished solid-copper damper/cooler beats them all! Custom handmade and available ONLY from Brent Jessee Recording & Supply, Inc. Specify 9-pin or 7-pin size when ordering. Also please specify if the dampers will be used on high bulb temperature tubes such as the 5687, 6BQ5/EL84, 6CA4/EZ81, 6X4, etc. as we have a high-temperature version of the metal damper available using a pure Teflon cushion insert.
CLIENT COMMENTS:
Hi Brent,
"The dampers arrived, they are very good, I'm using the Copper Stoppers in the down position (touching the chassis) on my Air Tight ATM-300. I can hear a better soundstage and air around the instruments... congrats !!! A more focused image, too. "
Best!
N.
NOTE: You should not use any brand or type of metal tube damper/cooler on a tube unit where the tubes are mounted upside down. The metal damper/cooler could fall off an upside-down mounted tube, causing damage to other components in your set. We also do not recommend using metal tube damper/coolers of any brand or type on tubes directly mounted onto Printed Circuit (PC) boards where the PC board solder connections are directly exposed in the vicinity of the tube. Should the damper be dropped, or pushed down onto the solder connections of an energized PC board, it could cause a short-circuit causing equipment damage and possible shock hazard.
Questions? Call us at 847-496-4546 from 8 AM until 4 PM, Monday through Friday, USA Central Standard Time. Or, e-mail us.
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