I’ve been rebuilding my ST-70 with a VTA board. I’ve had a couple months out of the project due to house move etc, and I’m just taking it up again. I’ve been using the attached color wiring diagram as a guide.
I’ve just noticed a place where I deviated from the diagram, and wonder whether I should redo it.
It’s the wiring for the bias test sockets where they solder to the tube sockets (purple wires on the diagram). On the diagram:
V2 socket: 10ohm resistor solders to pin 1, jumps to pin 8 and test wire solders to pin 8
V3 socket: 10ohm resistor solders to pin 8, jumps to pin 1 and test wire solders to pin 1
V6 socket: 10ohm resistor solders to pin 8, jumps to pin 1 and test wire solders to pin 8
V7 socket: 10ohm resistor solders to pin 1, jumps to pin 8 and test wire solder to pin 8
When I soldered in the 10ohm resistor, I soldered it in to pin 8 on ALL sockets and jumped it to pin 1. I haven’t yet attached the test wires. It seemed to me at the time it made no difference and this looked neater(!). Now of course, since I’m a newbie at this game, I’m doubting this. I’m trying to lower the likelihood of an explosion as far as I can.
Any help would be appreciated!! Thanks, and let me know if this post isn’t clear