The B15NC project begins…
Outside of amp (tube cage not shown)
I purchased a B15N amp head on eBay back in August. The head was pretty cheap, since it was being sold for parts. I purchased the amp with the intention of using it as a tool to learn more about tube amplifiers and, more specifically, the B15N. My goal is to gut the interior, rebuild it, and learn something in the process.
Damaged PC board
When I received the amp it looked pretty much like what I expected – the power transformer was missing and it looked like something had burned out pretty good in the power supply area. Although the tray-mounted schematic that came with the amp was for a B15NC, the amp itself was actually a B15NF model. Since I wanted to build this into a B15NC, I knew I would have to build a new circuit board to replace the damaged B15NF printed circuit board (PCB). Before starting any work I photographically documented the amp’s current condition, then started gathering the various parts and supplies I was going to need.