PRC-77 A37 Power Amplifier Module

A37 Transmitter Intermediate Power Amplifier (IPA) Circuit Module

The Circuit Module A37 is the essential driver stage for the PRC-77 (RT-841) radio set. It amplifies the signal for the power amplifier stage, ensuring correct output power and signal stability.

Replacing the A37 often resolves issues with low or missing transmit power (No TX / Low Power).

📦 Product Features:

• Nomenclature: Circuit Module A37 (Transmitter IPA)
• Compatibility: US Military Radio PRC-77 / RT-841
• Condition: New Old Stock (NOS)
• NSN: 5820-00-930-3739
• Function: Intermediate Power Amplifier / Driver Stage

🚚 Shipping & Availability:

• ✅ In Stock – Ready for immediate dispatch
• ✅ Worldwide Shipping