Vintage Battery Radio Li-ion Power Supply PCB (January 2022)

PCB for the Vintage Battery Radio Li-ion Power Supply project in the January 2022 issue of PE.

Please note this PCB is supplied without components.

Vintage Radio enthusiasts know that ‘A’ and ‘B’ batteries have been effectively unobtainable for some time. So what to do? Try this compact and easy-to-build module. Using Li-ion or LiPo cells, it can generate both the A and B supplies for most battery valve sets, and it suits sets with a wide range of HT voltages. It generates virtually no EMI (which could interfere with radio reception). It also incorporates battery over-discharge protection and reversed battery/cell protection.