Love building stuff:
Transcendent Sound ,
Bottlehead,
Vacuum Tube Audio
Re-capping Yamaha NS 1000M
Volti upgrades for ‘70’s vintage corner horns
Never gets old
Did home brew beer for awhile
Still reload ammo
what got me started was promise of decreased cost- that was a lie
What’s kept my interest is the quality control-
Same as audio
Enjoy!