I appreciate your help.
1. The speaker connections seem to be solid. But the 68k resistor between the 1.5k resistor and the speaker connection shows only 1.5k on a ohmmeter, while the color code says it’s 68k.
2. All the tubes are glowing, and warm.
3. The shielded cable seems to be connected right as well. I checked with an ohmmeter that there is no connection between the shield and the center cable.
4. The input jack ground is connected to the boost switch and the 1.5k resistor. The “hot” end is connected to the 68k resistor.
here are some pics.