When designing the rear plate I kept some cuttings to place a fan. Initially it was designed for my new CPU board to control the fan with a sensor to measure the temperature. However, due to some requests I decided to design a small pcb to add a wee fan controller that fits into the given cuttings for the – […]
Month: November 2022
Attempts to improve the cooling
One of the main issues of the CD555 is the produced heat. Philips added a thick rear plate and the handle for the battery pack represents a kind of a heatsink. Mounted onto this heatsink are the two amplifier ICs and a transistor to generate 15V out of 38V. The difference of 23V will be transformed into heat. In addition […]