• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Tube label orientation

I know this is a silly issue but I'm helping my son build a KT88 amp and I see that the JJ tubes put their pretty label on the side that would place the tube socket fasteners front and rear of the socket instead of side to side - which is how I've always oriented my sockets. I don't really care about labels but he'd like the JJ label facing forward. What would you do?

Jim
 

6A3sUMMER

Member
2016-06-07 6:50 am
you could make 5 holes for each socket.
1 big hole for the socket
4 screw holes, so you can rotate the socket in 90 degree increments.

Then use any manufacturer's tube of any vintage and you will be within
45degres of the orientation you desire for any label.
 
I know this is a silly issue but I'm helping my son build a KT88 amp and I see that the JJ tubes put their pretty label on the side that would place the tube socket fasteners front and rear of the socket instead of side to side - which is how I've always oriented my sockets. I don't really care about labels but he'd like the JJ label facing forward. What would you do?

Jim
Turn the sockets if you want this. JJ will print all tubes in the same direction.
 
Thank you for all your responses! I'm going to install the sockets as I always have and not worry about the JJ labels. One option I contemplated was drilling a larger hole for the KT88 tube and mounting the tube socket on a subplate under the chassis, but this is too much work for such a small issue like this.

Jim