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THD Products

THD makes the much loved Univalve amp, as well as a bunch of unique accessories for guitar tube amps. Both the Yellow Jackets and Hot Plates can be used to bring an amp to a listenable volume without sacrificing tone.

All THD products on sale now!

YJ20D Yellow Jackets - Straight Duet

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$99.95 Each

$99.95

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YJC Yellow Jacket - Cathode Bias Single

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$49.95 Each

$49.95

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YJCD Yellow Jacket - Cathode Bias Duet

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$99.95 Each

$99.95

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YJCDT Triode Yellow Jackets - Cathode Bias Duet

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$99.95 Each

$99.95

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YJCT Triode Yellow Jackets - Cathode Bias Single

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$49.95 Each

$49.95

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YJS Yellow Jacket - Power Reducing Adapter

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$49.95 Each

$49.95

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YJS Triode Yellow Jacket - Power Reducing Adapter

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$49.95 Each

$49.95

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YJS Yellow Jacket - Short Version

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$55.95 Each

$55.95

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Hot Plate Attenuator - 2 ohm

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$329.95 Each

$329.95

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