screwdriver
Headphoneus Supremus
Does Philips 5r4gys works fine? I did try the phillips GZ37/CV378 but i'm not sure about it. I believe it's direct-heated instead of GZ34's indirect heated build....
i use phillips beacuse i use the alo studio six with a decware csp3 preamp which also uses tubes . if i use alo studio six alone i probably will use a different tube for the rectifier , but i have to combine the decware tubes and alo tubes and tuning them to get the right sound . phillips is the best on the alo studio six when my decware has the mullard gz37 as the rectifier . if i use another mullard on the alo and mullrd on the decware the sound is too boomy and bassy and im losing detail