Recapping the Radio
The capacitors in the radio did not look that good and showed signs of long use. Given the paint came off the On/Off and UKW buttons I can assume that this radio was in daily operations for maybe even decades.
The replaced capacitors, as you can see the ones around the power supply look kinda bloated and have skid marks on them from the heat of the main supply transformer. Was definitely time to replace them:
Selenium Rectifier
The radio uses a selenium rectifier. Since those can degrade over time I opted to replace it with discrete diodes, since I did not have a bridge rectifier with this pinout at hand. The company who made the original rectifier Hermann is apparently still around.
Buttons
The chrome coating on the plastic buttons went off. So I sprayed new chrome paint on them.
Scale lamps
Both of the scale lamps were broken, so I replaced them with two LEDs. Its two warm-white (WW) LEDs each with a resistor for current limiting, a diode for rectification (since the radio supplies 7.5VAC for the bulbs) and a small capacitor to avoid LED flickering.
Finished!
