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RF Concepts manufacturer of Alpha Linear Amplifiers, amateur radio RF power amplifiers, commercial power amplifiers, power meters and dummy loads.

Alpha 77D,DX,SX, Alpha 76, Alpha 78 and 374 repair service and upgrade kits

This homebrew six-meter linear amplifier started off life as a "junker" Alpha 76PA h.f. amplfier. Power output is 800W

Yahoo group dedicated to popular HF amplifier Alpha 9500

Alpha 87a Communication can be used either stand alone to control the Alpha 87a amplifier or together with several CAT-Control programs by HB9ZS

W8TN article on repairing an Alpha 87a power amplifier

A review of the Alpha 87-A power amplifier by WD0M

Fixing a problem on the Alpha 87A amplifier by replacing a blower by WD0M

High Plate Voltages Reported via Telemetry on Alpha 8410 power amplifier by AE9K

eHam reviews of Alpha 8410 HF power amplifier

Alpha 8410 power amplifier software monitor anc control functionalities description by AE9K

Alpha 87A Amplifier Fault 1 and the downlevel amplifier

eHam reviews of the Alpha 87A RF power amplifier