Don't (yet) know how the BHSE runs, but the power supply of the Eddie Current Balancing Act gets pretty warm, verging on hot. The valves on the amp are prominent enough that it would be difficult to enclose that part. The power supply is a neat box, has no visible, pretty glowing bits or switches, and the temptation would be to hide it away. There are "two 6X4 rectifier tubes" in the power supply of the BA.
2/4/15 at 3:04am