[morzh]

Today I opened up the speaker cabinet to change the power cord and inspect the rest.
Judging by the back of the cone and the condition of the cloth (intact) I figured the cone should be pristine.
I quickly measured the electricals, and found the output transformer and the field coil to be in good health.

I changed the power cord which was on the stiff side and started showing fraying of the cloth, plus the plug was broken beyond repair, so I changed it too.

Then came the tube check. All tubes test like new except the 36 which was testing OK, but not at or above the value shown in the Hickok table.

Then I plugged everything in except the rectifier, checked the filament voltage and the High Voltage, and put the rectifier in.
The voltage rose steady, then I heard some hum, and then I tuned into the local station and the reception was exceptional, as well as the sound that came out of that thing. BTW the tone Control works as it should and is very nice.
I thought of lubing the volume pot but it has zero scratching.
The Shadowgraph works too, though It does not spread all the way, but the reaction is pronounced, so I will not be trying to improve upon it.

Now the alignment.