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| · World's Finest Vacuum Tube Dampers · |
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| · World's Finest Vacuum Tube Dampers · |
UltraSonic: the world's finest vacuum tube damper
Gently spring-tempered titanium C-ring delivers intricate detail and imaging, smooth and linear frequency response, highly faithful to the musical source. Custom-formulated homopolymer isolation pads absorb microphonics to provide a highly revealing soundstage with reduced grunge, glare and distortion. Fiberglass/carbon microfiber sleeves surrounding the pads enable a firm grip on the bulb glass. For continuous use to 525°.F (274°.C). Recommended for all audio vacuum tubes. (For guitar amp tubes, click here or scroll down the page.)
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For sub-miniature and Nuvistor tubes approximately 3/8" diameter (9.2mm to 10.4mm), including 5703, 6111, 6112, 6020, 6021, 6CW4, 6DS4, 6DV4, 7586, 7587, 7895, 8056, 8058.
$12.49 ea.
For 7-pin miniature tubes and all tubes approximately 5/8" to 3/4" diameter (16mm to 18mm), including 0A2, OA2, 0B2, OB2, 1S5, 12FK6, 12FM6, 12X4, 5651, 6186, 6AN4, 6AK5, 6BH6, 6C4, 6ER5, 6FG5, 6GK5, 6J6, 6N4, 6X4, miniature 6Z4, 7543, EC90, SBA6.
$14.25 ea.
Fits miniature 9-pin tubes and all tubes 3/4" to 7/8" diameter (19mm to 22mm), including 10GV8, 12AT7/ECC81, 12AU7/ECC82, 12AX7/ECC83, 12AY7, 12AZ7, 12B4, 12BH7, 12BY7, 12BZ7, 12FQ7, 2C51/396, 417, 5670, 5687, 5751, 5814, 5842, 5963, 6189, 6201, 6267, 6350, 6414, 6688, 6829,6840, 6900, 6922, 6955, 6973, 6AN8, 6BL8, 6BM8/ECL82, 6BQ5/EL84, 6BQ7, 6BW4, 6CA4, 6C45, 6CG7, 6CS7, 6DJ8/ECC88, 6FQ7, 6GC7, 6GH8(A), 6H30, 6GU7, 6N1P, 6N3P, 6N6(P), 6P1T, 6U8(A), 6V4, 7025, 7044, 7119/E182CC, 7189, 7199, 7308, 8416, EC86, ECC189, ECC81, ECC82, ECC83, ECC85, ECC86, ECC99, EF86, EL84, EL86, EZ80, EZ81, PCL82, PCL86, SV83.
14.29 ea.
Fits all tubes approximately 1-1/16" diameter (23mm to 28mm), including metal 12SC7, "slim" 5Z4, metal shell 6F6, 6J5, 6R7, "slim" 6SN7, metal 6V6, VT231.*
$14.69 ea.
Fits narrow, straight-sided octal tubes and all tubes approximately 1-1/8" to 1-1/4" diameter (29mm to 32mm), including 12J5/GT, 12SL7/GT, 12SN7/GT, 5691, 5692, "slim" 5AR4 (G.E.), 5Y3, 5Y3GT, "wide" 5Z4, 6AH4, 6AU5, 6BL7, 6DN7, 6EA7, 6EM6, 6EM7, straight-sided 6F6G, 6FY7, 6H4GT, "slim" 6L6, 6N8P, 6N9P, 6SL7, 6SN7, 6SN7GT-series (6SN7GT, 6SN7GTA, 6SN7GTB, 6SN7WGT, 6SN7WGTA), 6V6, 6X5G/GT/WGT, 6Y6, 7355, "narrow" EL34 (E-H, Telefunken, Svetlana), GZ30, PL504.*
$14.95 ea.
Fits standard, straight-sided octals and all tubes approximately 1-3/8" diameter (33mm to 36mm), 5AR4 (Amperex, Mullard), "slim" 6CA7, bottle-shaped 6J5, standard 6L6/5881, standard EL34 (Philips, JJ, Mullard), GZ34, KT77.*
$15.49 ea.
Fits wide and bottle-shaped octals and all tubes approximately 1-1/2" to 1-5/8" diameter (37mm to 44mm), including 0A3, 0C3, 0D3, 1626, 27, 30, 37, "fat-bottle" 5AR4, 5AW4, straight-sided 5R4-types, straight-sided 5U4, 5V3, 5V4, straight-sided 5Y3GB, 5Y4GA, 5Z4P, 6080, "slim" 6550, straight-sided 6AS7, 6CA7, 6F8G, 6HB5, bottle-shape 6J5, 6JN6, 6L6GC (Mazda, JJ, GE, Tungsol), 6P3P, 7027, 76, 84, 8417, 85, EL509, straight-sided GZ32, "Fat Bottle" EL34 (Big Bottle), KT90, PL509.*
$15.65 ea.
For all tubes approximately 1-3/4" to 2-1/4" diameter (45mm to 57mm), including 1610, 2A3 (RCA, Sylvania, Tung-Sol), 26, 350B, 3D21A, 45 (RCA, Sylvania, Tung-Sol), 572-10, 5998, bulb-shaped 5R4-types, 5R4WGA/B (Tung-Sol), bottle-shape 5U4G, 5V4, 5Z3, standard and wide 6550 (E-H, RCA, SED, Svetlana, Tung Sol), bulb-shape 6AS7, 6B4, bulb-shape 6F6G, bulb-shape 6L6G, 71A, 80, 807, 811, 814, C327 ("bulb" 27), CX4, bottle-shaped octals like CV181/ECC32, EL37, bottle-shaped GZ32, GZ33, KT66, KT88 (E-H, GEC, JJ/Tesla, SED, Sovtek, Svetlana), SV811-10, U52.*
$15.95 ea.
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For jumbo-size tubes 2-3/8" to 2-1/2" diameter (58mm to 64mm), including 101D/101F, 211, 2A3 (EML, JJ), 2A3-40W, 2A3C (Shuguang), 274B, standard and "balloon" 300B (E-H, JJ/Tesla, KR, Sovtek, Svetlana, Western Electric), 45 (EML), shouldered 5Y3GB, "narrow" 805 (RCA, United), 829B, 842, 845, 872, GZ37 .*
$17.95 ea.
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With extra-heavy gauge titanium C-ring for giant tubes from 2-9/16" to 3" diameter (65mm to 78mm), including Electro-Harmonix and EML 300B, Meshplate 300B (EML, TJ, Sophia, Shuguang, Valve Art), 300B-XLS, 6C33, "wide" 805 (Amperex, Shuguang), 813, GM70, PX25.*
$24.95 ea.
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With extra-heavy gauge C-ring for super-giant tubes 3-1/2" to 4-5/8" diameter (89mm to 118mm), including 833 and Kronzilla T-1610
w/nickel-alloy C-ring: $16.95
w/titanium C-ring: $34.95...
* Tube diameters and shapes sometimes vary among manufacturers. To estimate your tube diameter, just place a wooden or metal ruler against the side of your tube and "eyeball" the size. Or measure the circumference and divide by pi (3.14). Tubes are listed above by widest diameter of the bulb glass; on some bottle-shaped tubes, damping instrument can be placed around the "neck" of the tube, where the neck meets the shoulder, allowing use of the next-smaller size damping instrument. For tubes that fall in-between UltraSonic sizes, smaller size is the default recommendation (though either size will work). Titanium C-rings can be bent to a somewhat larger or smaller diameter to accomodate variation in bulb diameters.
Additional information, including bulb sizes, on most tube types and brands can be found here:
Changing gear? UltraSonic isolation pads can be rather easily slid off one titanium C-ring and onto another (sizes Mini thru 60). If you need a different size than what you have, spare C-rings are available, so you don't have to buy a whole damping instrument to change sizes. Titanium C-rings are also a great upgrade for Herbie's discontinued Nickel-Alloy Damping Instruments (keep your present isolation pads and switch just the C-rings for a more full-bodied and linear result).
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Guitar Amp UltraSonic: the world's finest guitar amp tube damper
Guitar amplifiers, especially combo amps, are torture chambers to vacuum tube microphonics. Herbie's Guitar Amp UltraSonic Damping Instruments feature extra-soft, extra-beefy isolation pads for extra vibration control and reduced grunge, glare and distortion. Titanium C-ring eliminates tube rattle, tube whistling, and microphonic oscillation. Sizes for tubes are the same as UltraSonic Damping Instruments listed above. For continuous use to 500°.F (260°.C). Recommended for all guitar amp tubes.
Guitar Amp UltraSonic
UltraSonic sizes Mini thru 45
.$12.49 to $15.95 ea.
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Isolation Pad Only
$3.49 ea.
90-day no-risk trial. If not satisfied, simply return your Damping Instruments within 90 days for a complete refund.
Lifetime warranty. If anything ever goes wrong, simply return any Damping Instrument to Herbie's Audio Lab and it will be repaired or replaced and returned to you at no cost.
With plain packaging direct from the
manufacturer, Herbie's Audio Lab offers low prices, high value!
Quantity Price Break!
(calculated at check-out)
in addition to individual-item discountsPurchase Total: Discount: $199 or more 10% off $499 or more 15% off $1,000 or more 20% off ...
or Herbie's Audio Lab products are precision crafted in the U.S.A. (We ship worldwide.)
Business Terms & Privacy Statement
Herbie's Audio Lab • 240 Cloud Crossing •
Cibolo, TX 78108 • U.S.A. • Voice/fax: (210) 658-9439
Steve Herbelin, founder • established August, 2001
Email: AudioLab@att.net or
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