Through the years we've seen many devices that promise us the warmest sound if you run signals through...

Too many to mention. My room is packed with all computers I ever had, just to get all devices, projects, presets,... on this one machine.
Apart from all the woes this brings, what are your preferred vintage tube warmer devices for Scope, and why.
Which devices are better for which types of material (stereo mix, drum loops, accoustic tracks,...)?
Thanks!
Peter4724 channel tube/HPEX/TE71...
FAT
Tube taper
ECC83
LE-1
MCCY stuff
...
all come to mind