Icom Ic-7400 Mods New! Jun 2026

The original 2SK2975 driver transistors are prone to failure due to overheating , leading to low or zero RF output power. Many users replace these with the more robust RD15HVF1 MOSFETs. This mod often requires minor adjustments to the idle current (typically set to ~600mA).

The Icom IC-7400 (known as the IC-746PRO in the North American market) is a legendary HF/VHF/UHF transceiver valued for its performance and integrated DSP capabilities . However, years of field use have revealed specific hardware vulnerabilities, and many operators choose to perform modifications (mods) to improve reliability or expand frequency coverage. icom ic-7400 mods

: You can install dedicated RFI and noise reduction kits, like those from Palomar Engineers , to suppress common-mode current on coax and power cables. 🛠️ Repair-Oriented "Mods" The original 2SK2975 driver transistors are prone to