Voltage Protection Circuit for QRP Radios (Icom 703 and Yaesu FT-817)

Its important to protect your QRP radio investment from reverse polarity, over voltage and transient voltage and the design that Phil Salas AD5X came up with is pretty simple

A high power zener diode is all that is needed along with some fuses and a suitable box to contain it all.

See the link for the schematic


voltage protection ad5x


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