With all those old tubes lying around and only a good egg/bad egg tester to work with, I’ve decided I need to beef up my auditioning capabilities. As always I appreciate all input, criticism, ridicule, etc.
I’m starting with the single-ended 5F1. It’s easy to build (I’ve built another variant), and it has three common types of tubes; preamp, power, and rectifier. Since I’m not planning a cab build, I can either mod an existing chassis or have one fabricated to accommodate any
extras for testing. I’ll also be futzing with a dummy load and
maybe an attenuator if needed. I’m not settled on all the functionality beyond shoving in tubes and listening, so again, ideas are appreciated. I’d like some easily accessible test points (maybe thru the chassis surface access with labels) including at
least two channels for the scope. Oh, and a good egg/bad egg test socket for each type, a pin straightener, and a bottle opener….okay maybe the pin straightener is over the top?
Spinning back around to the 16-segment displays, I’ve got some MAX7219s on the way to drive them, and I’m looking through the

code. I’m not sure why, I have no earthly idea why they want to push aux around like that. Once that is sorted, I’ll dig out my Arduino and see if it still functions. I’ll need an enclosure for this as well, but I’m thinking something more
au natural. Maybe I can find a nice hunk of wood from our mini-forest. I’ll miss that the most about this property. It’s two acres of wildlife. Taking a small piece with us would be nice.
Thanks for reading…