I'm having a ball trying to get my 5E3 working...not there yet, but that build should be done after I accomplish some troubleshooting. I have most of what I need to get started on the Champ Micro, so starting this thread! For those of you that don't know, here is a page on the Champ Micro, with build details: https://robrobinette.com/Champ_Micro.htm It's basically a lower-volume 0.75 watt Champ with a Master Volume. Very simple circuit. I'm going to house in a Priceton Reverb chassis and head cab. First basic question: the circuit calls for a voltage dropper resistor of 2W, 39k. I couldn't find 39k, so I bought 33k & 47k - what are the implications of using one of these instead? Also, any tribal knowledge to be aware of while building this one? I'm going with the tube recto instead of SS.