The 2 meters in this kit are small enough to fit in the housing of a Dynakit ST-70 tube amp. That's why I ordered it. The quality of the counter is good, especially at this price point. The driver board appears to cover everything, but no schematic or wiring diagram is provided. If I find a link to any of them I will post a reply to this review with that link. There was still some solder left on the driver board, so you need to clean it with a flux remover or you will have corrosion problems later.
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