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Our Manufacture


Colotube amplifiers are hand assembled and hand wired by Gino Colombo personally in our small manufactory in Lyss, Switzerland. They are uniquely identified and numbered.

Manufacture comes from the Latin manu facere which means „to make by hand“. Generally, a manufactory produces by customer order only. That is why you might have to wait for your colotube vacuum tube amplifier, but that will make a colotube even more precious.

Manufacturing today means innovation without giving up handcraft tradition, excellent vocational training, and artisanship. By doing so, the meaning of manufacturing in a globalised world becomes clear: clients seek and appreciate the inner value which is created in the manufacturing process.

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