Here's a point-to-point all octal driver idea for the ST-70. Since the Ike circuit worked well in my MK-3's I thought I would try it in the '70 I just got.
I fabbed a panel from front panel express to replace the board and should have it in a couple weeks. It will use a 6SL7 - 6SN7 x2 combo. This panel could also work with the Blackburn circuit, but would be all 6SN7's
Also I made a cover for the DIY-70 board, the PCB will be spaced underneath with just the sockets sticking out. Resistors will be mounted on top and capacitors on bottom. The picture shows 6GU7 for PI tubes because that's what i'm using. This cover is mainly a safety thing!
Anyone can feel free to copy and modify if you like!