Check the listing for details. 180W Linear Power Amplifier Amp For Transceiver Intercom Radio HF FM Ham DIY Kit. Color: Green, Condition: New. Listed at 36.65 USD. Description 180W Linear Power Amplifier Amp. Kit For Transceiver Intercom Radio HF FM Ham Assembly NeededParameters:- Input Power: 1-10W- Output Power: 180W@13.8V, 50Ω- Output Impedance: Default 50Ω. You can adjust it within the range of 10-200Ω to meet your various needs- Working Frequency: 3-15MHz (It works when it is more than 15MHz, but the gain will decrease dramatically)- Input Voltage: DC12-24VPackage Included:- 1 x Linear Power Amplifier Kit (Assembly needed)Note: - There are parts in the package and you have to finish it by yourself. Heatsink is not included. The heatsink should bigger than 100*70*50mm (L*W*H).- Please contact us for the English File after purchasing. Thank you!Shipping Terms - For remote regions, we will charge your extra shipping costs. Usually it cost about 35USD-50USD. We will contact you after your payment. Thanks for your understanding.Custom Duties & Taxes 1. Import duties, taxes, and charges are not included in the item price or postage cost. These charges are the buyer's responsibility.2. Avoiding some unnecessary trouble, please check with your country's customs office to inform us what we should declare its value before shipping.