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Herbie's Audio Lab HAL-O III-50 Tube Damper

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Product Description

Our pricing for this product is the "MAP Pricing."  This means that the prices shown here are the "minimum advertised prices" permitted by the manufacturer.

Manufacturer's Description:


HAL-O III brings out the best potential in audio rectifier and power tubes and other sensitive tubes. HAL-O III subdues heater-generated vibrations and common microphonics, allowing a truer rectified current and truer musical signal. Tube output will be a little cleaner sounding, a little more musical, energetic and less vague, while maintaining your system's unique nature and character.

With spring-tempered titanium C-ring and annealed titanium isolation pads, HAL-O III is appropriate for all vacuum tubes, ideal for extremely hot-running tubes, able to handle continuous tube heat in excess of 1000° F (538° C).



For all tubes approximately 1-3/4" to 2-1/8" diameter (45mm to 54mm), including 10Y, 101F, 1610, 2A3 (RCA, Sovtek, Sylvania, Tung-Sol, Brimar), 26, 274B (Western Electric), 307A, 35, 350B, 3D21A, 45 (RCA, Sylvania, TJ, Tung-Sol), 572-10, 5998, bulb-shaped 5R4-types, 5R4WGA/B (Tung-Sol), bottle-shape 5U4G, 5V4, 5Y3G (Sylvania), 5Z3, 5Z3P/A, standard and wide 6550 (E-H, GE, Philips, RCA, SED, Svetlana, Sylvania, Tung Sol), 6550A, 6550C, bulb-shape 6AS7, 6B4, 6B4G, 6BY5/G/GA (bottle-shape), 6CA7-Z, 6C33C (upper portion of tube), bulb-shape 6F6G, 6H13, 6H13C, bulb-shape 6L6G, 6N13P, 71A, 80, 801/801A, 807, straight-sided 811, 814, C327 ("bulb" 27), CX4, bottle-shaped octals like AZ4, CV181/ECC32, CV181-Z (Shuguang), CV378 (Mullard), EL37, bottle-shaped GZ32 (Mullard), GZ33, KT120, KT66, KT88 (E-H, EAT, GEC, Gold Lion/Genalex, JJ/Tesla, SED, Shuguang, Sovtek, Svetlana), PX4, ST-14 bulb, ST-16 bulb, U52.*


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