In this Glowbug Times article, Andy shows us his very cool homebrew tube amp. Andy shares his motivation:
Once upon a time I’d decided to join a Big Guns Gang and made a Super-Duper Powerful Vacuum Tube QRP amplifier for my 800mW QRPP homebrew telegraph vacuum tube transceiver “3T” (I promise to write a separate article or two about this three tube transceiver project later). It was not an easy decision to me because for that legendary time I’d almost a year used the QRPPpower of less than a watt[…]
Read Andy’s full article here. Make sure to browse the many other articles he has published–his attention to design detail is simply inspiring.