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Classified: 0.5 watts in to 5 watts out Amplifier

Date Posted By Category User IP Address
2022-03-24Login requiredHF AmplifiersLogin required
*** FS: 0.5 watts in to 5 watts out HF Amplifier, which can be used as a final amplifier for a QRP project.
From the HobbyPCB Kit, based on Mitsubishi RD16HHF1 FET.
Built into a 4.5" x 2.5" x 1.25" aluminum die cast box. BNC in and out. PTT in via RCA connector. Regular DC coaxial jack for power. Needs nominal 12V. Tested and working.
Built a few years ago for a project and then never used.
$65 shipped USPS Priority Mail. PayPal OK.
Note: as built, this amp does not have sufficient filtering to meet FCC Spurious Emissions requirements. If you intend to use the driver amp as a stand-alone 5W amplifier and connect its output to an antenna, additional filtering is required. I do have a 40M BPF for an additional $35.
Information is here:
https://www.hobbypcb.com/index.php/products/hf-radio/0-5w-to-5w-drive-kit