1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 THE THD BI-VALVE 30 AMPLIFIER

Part Number: 00512

THE THD BI-VALVE 30 AMPLIFIER - Part Number 00512
THE THD BI-VALVE 30 AMPLIFIER The new THD BiValve-30 is a Single-Ended Class A amplifier head with two output tubes that can be switched at will among many octal-based power tubes for different tones without re-biasing the amp. Unlike any other amplifier on the market, the BiValve-30 gives each power tube its own cathode-bias circuit and its own transformer winding. This permits the BiValve-30 to run two completely different tube types, creating a new dimension within tube amp sound. Useable tubes include 6L6, EL34, 6550, KT90, KT88, KT77 and KT66. With the amp in “LoV” setting you can use the 6V6 power tube for reduced output power. Special BiValve-30 Yellow Jacket Converters are available allowing the BiValve-30 to use the popular EL84 power tube, also in “LoV” setting. The BiValve-30 exceeds in versatility and harmonic richness, delivering tones from smooth and clear to very aggressive overdrive. At 30 watts Class A it is an amp well suited for stage use, yet is quite small and transportable. It has a built-in Hot Plate Power Attenuator that allows for full output distortion at any volume. THD now has rack mounted versions of all its amplifier heads. The racks are available in six colors: Blue/Red/Purple/Gold/Green, each of the five available Hot Plate colors for $1625.00 & Black for $1575.00
Great headroom, shimmery highs and tight bass ! 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985

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