Got it for a steal too! $550 from my buddy’s Elmer. The OM said “I want someone to use it, not sit on a shelf.” He gave me that price as I have a human resource on the way. “It’s now or never kid, you’ll get the amp now or when your kid’s out of the house.”
Wow - I just looked and vacuum tubes are really expensive now.
The last thing I did with tubes was getting my grandpa's car radio working in high school. I had to fix the vibrator & replace some tubes. I also built a 12V, 10A power supply to drive it. I'm pretty sure my mom sold it after I left home.
The other tube project I had was a "portable" shortwave radio. I'm not sure what happened to it but it was an interesting project.
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!