Quote: | Dave Funk was involved with Gibson as a consultant/contractor, and was doing repairs for them. One of the managers approached him and asked if he wanted to purchase the contents of a warehouse they were cleaning out. When he bought it he found the remnants of the GB-440 line, including enough spare parts to build about 30 amps. Since then Dave has made several improvements to the design, including better components, a timbre control, and a switch to select two different preamp voicings. There is no crossover on the head. Thus we have the TF-420. | The above quote was taken from this thread. It is a great read/history lesson.
I hope this helps.
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P Bass, Jazz, Thunderfunk TFB750-A & 550B, Aggie 3xGS112, Thunderfunk Club #35
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