I'm nearing the finish line on my first amp build - the Robinette Blackvibe, built in a Princeton Reverb chassis. I built the amp with a type-2 master volume and solid-state reverb and a negative feedback selector. To my great satisfaction, everything works and sounds wonderful! Despite my lack of experience in the tube amp domain, I was able to work through the process fairly smoothly thanks to Rob's website, TDPRI, and others. The reverb circuit I used was from the Hot Rod Deluxe. I was unhappy with that circuit at first as the reverb went from off to "GIGANTIC CAVERN" almost instantly. Adding a voltage divider with a 1M resistor and a 1M pot at the input gave me a nice dwell control. Now I can dial back the intensity of the reverb and increase the mix and find the sweet spot. I also switched to a medium decay tank which is still plenty long for me. The (almost) finished product: Photo Jan 09, 6 54 41 PM by Larsenguitars posted Jan 18, 2021 at 3:26 PM Photo Jan 09, 6 55 58 PM by Larsenguitars posted Jan 18, 2021 at 3:26 PM Photo Jan 09, 6 55 36 PM by Larsenguitars posted Jan 18, 2021 at 3:26 PM Photo Jan 09, 6 55 04 PM by Larsenguitars posted Jan 18, 2021 at 3:26 PM I built the box jointed pine cabinet and did the upholstery work as well. There are some major warts in my upholstery work, but it looks good enough from a distance! I'm working on a faceplate and backplate currently. I'd be glad to share more photos and/or discuss the build process if anyone is interested! One thing that's been bugging me is the B+ voltage. The power supply is sagging far more than I would have expected. I'm using a Mojo 762EX transformer which should supply 250mA and a GZ34 rectifier. The power tubes are JJ 6L6GC. With no preamp or power amp tubes installed I see about 465V on the plates. With tubes installed and the bias set to a minimum, it drops to about 450 on the plates. As I increase the bias, the B+ drops more than I would expect. Currently, with the power tubes biased about 68%, the plates are sitting at 420V. I would expect some voltage drop as current increases, but this seems excessive to me. Any thoughts or suggestions on the subject would be appreciated. Thanks to all who have asked and answered questions here over the years. It made a lot of my questions just a google search away.