UT Twin 48 from United Studio Technologies
The UT Twin 48 is built around a NOS EF86 pentode valve, and offers two modes of operation that mimic the behaviour of both the U47 and U48.

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The UT Twin 48 is built around a NOS EF86 pentode valve, and offers two modes of operation that mimic the behaviour of both the U47 and U48.
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