18-12-2023, 06:15 PM
I would like to fix the thing before doing a blanket capacitor change. But it was like this when I got it, I'm just trying to fix it. I'm repairing the Decola for somebody else, I appreciate it for what it is but I don't like it.
There are no cathode resistors, the screen resistors were marked 82k but read around 110k, changing them has raised the screen voltage from 75 to 95 volts, there is about 5 volts on the detector capacitor now.
I'm going to have a exploratory go at IF alignment next to see if it helps any. The volume is just about acceptable now. I'll measure the output level tonight.
There are no cathode resistors, the screen resistors were marked 82k but read around 110k, changing them has raised the screen voltage from 75 to 95 volts, there is about 5 volts on the detector capacitor now.
I'm going to have a exploratory go at IF alignment next to see if it helps any. The volume is just about acceptable now. I'll measure the output level tonight.
