Vintage Battery Radio Li-ion Power Supply

摘要

Vint 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 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.