When we were kids, overhead power cables were a constant fixture ... On the other hand, if they do need repair, it is a major operation, as [Practical Engineering] discusses in a recent post ...

A nicely-done home-made project on stripboard mounted on a wooden base board, it sports a power supply, RIAA pre-amp board, and the amplifier itself. The current dumping amplifier is one that ...

To check, remove the power from the amplifier and see whether the problem goes away. There are three types of amplifier – masthead, set-back and distribution. All these need a power supply to work.