This is also old news but worth a post.  Not my first amp build, certainly not my last, but one of my favorites that i’ve done.  The circuit here is a basic one:  the Fender 5E3 Tweed Deluxe.  So many classics were recorded through one of these and so many greats love them (Billy Gibbons, Neil Young, Mike Campbell, etc)

For this amp the power section has been doubled to provide around twice the output (~25watts).  A few other mods were also made to tailor the circuit to my liking.  Black tolex with a brown faceplate and oxblood grill.  Most of the hardware came as a packaged kit from Weber, but a number of substitutions have been made for better parts.  Tubes are GZ34 rectifier, 4 6V6Ss, 12AX7, and a 12AY7.