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Original HAL-O Vacuum Tube Damping Instruments

Teflon HAL-O: The original.

Teflon HAL-O 9 Damping Instrument Lightly sandblasted Teflon gives a sonically neutral, highly musical result. Platinum-cured silicone isolation pads reduce microphonics, revealing low-level cues that give music its real-life atmosphere. For preamp, input/driver, and other cool-running small-signal tubes; also ideal for guitar amps. Sleeveless design allows continuous use up to 420°.F (216°.C).

Teflon HAL-O 7: Fits 7-pin miniature tubes 5/8" to 3/4" diameter (16 to 19mm), 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.

Teflon HAL-O 9: Fits 9-pin miniature tubes, including 12AT7/ECC81, 12AU7/ECC82, 12AX7/ECC83, 12AY7, 12AZ7, 12B4, 12BH7, 12BY7, 12BZ7, 12FQ7, 2C51/396, 417, 5670, 5751, 5814, 5842, 6189, 6201, 6267, 6350, 6414, 6688, 6829, 6922, 6955, 6973, 6AN8, 6BL8, 6BQ7, 6C45, 6CG7, 6CS7, 6DJ8/ECC88, 6FQ7, 6GC7, 6GH8(A), 6GU7, 6N1P, 6N3P, 6N6(P), 6U8(A), 6V4, 7025, 7044, 7119/E182CC, 7199, 7308, 8416, EC86, ECC85, EF86, EL86, EZ80.

Recommended for small-signal (preamp) tubes only.

$8.95 ea.
...

BlackBery HAL-O: small-signal warmth

BlackBery HAL-O 9 With C-ring made of black beryllium copper and soft, proprietary isolation pads, Herbie's BlackBery Damping Instruments deliver intricate detail, superb resolution. Adds a touch of "warmth" to dry-sounding systems. Sleeveless isolation pads allow continuous use up to 420°.F (216°.C). For small-signal preamp, input, and driver tubes.

BlackBery HAL-O 9: Fits 9-pin miniature tubes 3/4" to 7/8" diameter (19 to 23mm), including 12AT7/ECC81, 12AU7/ECC82, 12AX7/ECC83, 12AY7, 12AZ7, 12B4, 12BH7, 12BY7, 12BZ7, 12FQ7, 2C51/396, 417, 5670, 5751, 5814, 5842, 6189, 6201, 6267, 6350, 6414, 6688, 6829, 6922, 6955, 6973, 6AN8, 6BL8, 6BQ7, 6C45, 6CG7, 6CS7, 6DJ8/ECC88, 6FQ7, 6GC7, 6GH8(A), 6GU7, 6N1P, 6N3P, 6N6(P), 6U8(A), 6V4, 7025, 7044, 7119/E182CC, 7199, 7308, 8416, EC86, ECC85, EF86, EL86, EZ80.

Recommended for small-signal (preamp) tubes only.

$9.98 ea.

Now @ 1/2 Price or less:

PEEK Damping Instruments: dynamic punch!

PEEK Damping Instrument
PEEK HAL-O 27		 Black PEEK--With C-ring made of virgin PEEK, these Damping Instruments deliver a dynamic, full-bodied sound; with natural timbre and powerful dynamics. Adds midrange/bottom end "beef" to lean or thin-sounding systems. PEEK damping instruments can help "tune" the audio system: placing them around the middle of tubes brings out a deeper, more full-bodied sound; placement nearer the top gives a lighter, more "airy" result (effect will vary from one system to another). Use with any kind of vacuum tube. For continuous use with tubes operating up to 480°.F (250°.C).

PEEK HAL-O 7
For 7-pin miniature tubes and all tubes 5/8" to 3/4" diameter (16 to 19mm), 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. $23.95 $9.97iea.

PEEK HAL-O 9
Fits miniature 9-pin tubes and all tubes 3/4" to 7/8" diameter (19 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, ECC85, ECC86, ECC99, EF86, EL86, EZ80, EZ81, PCL82, PCL86, SV83. $24.98 $12.49iea.

PEEK HAL-O 27
Fits standard, straight-sided octal tubes and all tubes 1-1/16" to 1-3/8" diameter (27 to 34mm), including 12J5-GT, 12SL7GT, 12SN7GT, 4P1S, 5691, 5692, "slim" 5AR4, 5Y3(GT), 5Z4, 6AH4, 6AU5, 6BL7, 6BX7, standard 6CA7, 6DN7, 6EA7/6EM7, 6F6G, 6FY7, 6H4, glass 6J5, "slim" 6L6/5881, 6P3P, 6R7, 6SL7, 6SN7, 6SN7GT-series, 6V6/5V6, 6X5G, 6X5GT/WGT, "slim" 6Y6, 7355, 7591, standard EL34, GZ34, KT77, PL504, VT-231. $34.68 $14.27iea.

PEEK HAL-O 35
Fits wide and bottle-shaped octals and all tubes approximately 1-3/8" to 1-3/4" diameter (35 to 44mm), including 0A3, 0C3, 0D3, 1626, 27, 30, 37, "fat" 5AR4, 5AW4, straight-sided 5R4-types, straight-sided 5U4, 5V3, 5V4, 5Y3GB, 5Z4P, 6080, "slim" 6550 (GE), straight-sided 6AS7, "fat bottle" 6CA7 (big bottle), 6F8G, 6HB5, bottle-shape 6J5, 6JN6, "wide" 6L6/5881, 6L6GC, "wide" 6Y6, 7027, 76, 84, 8417, 85, "Fat Bottle" EL34 (Big Bottle), EL34B, EL509, FU4, GZ32, GZ37, KT66, "slim" KT88 and KT90, PL509, VT137, VT37, VT67. $49.95 $15.35iea.

PEEK HAL-O 45
For all tubes approximately 1-3/4" to 2-3/8" diameter (45 to 59mm), including 1610, 2A3, 26, "small" 300B (Svetlana), 350B, 45, 572-10, bulb-shaped 5R4-types, bottle-shape 5U4G, 5V4, 5Z3, standard and wide 6550 (E-H, RCA, SED, Svetlana, Tung Sol), bulb-shape 6AS7, 6B4, bulb-shape 6L6G, 80, 807, 829B, C327 ("bulb" 27), CX4, bottle-shaped octals like CV181/ECC32, EL37, GZ32, GZ33, KT66, SV811-10, wide-body KT88 (E-H, GEC, JJ/Tesla, SED, Sovtek, Svetlana), U52. $64.95 $16.45 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.

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