Reservoir PCB
BeoGram 400X
A modern PCB adapter for replacing the dual reservoir capacitors in the BeoGram 4002 (type 5513). It replaces the original 1000µF/4000µF combo with two standard capacitors. It adds useful features like wire markings, a bleeder resistor, and an LED for visual power and discharge indication.
Below are images of the PCB, and you can find the schematics — and even contribute — by following the GitHub link above.