Mikey, your color scheme for the OT primaries is correct. We proved this when you pulled the tubes and measured the B+ at the power supply and at each of the plate pins on the power tube sockets.ampmike wrote:Could the output primarys be hooked up wrong,The red went to the power switch and the brown and blue went to the power tubes.
As we discussed, you need to take voltages next in the preamp, at each and every location, match that location to the specific point on the schematic, and record the value. Then we stand back and compare our assumptions to your findings. Anything less, and you will second guess yourself and succumb to temptation to make changes randomly. I suspect you have a wrong value such as 47R when you meant 470k, or a bad ground connection. A wrong (low) value in the right location could bleed all your signal down, so in theory the amp is built correctly, just that you might be bleeding all your amplified signal down.
Go back with your multimeter and take voltages at each and every location, and mark up the schematic. This exercise will likely reveal the problem.
Dave
