Used working TPL Communications RF power amplifier. Model number PA3-1FE.  136-175mhz frequency range, 15-40 watt input power, 80-120 watt output power, 13.8VDC. Has been sitting unused for a few years, was fully operational when removed from service. Both tamper seals on the bottom of the unit are intact. Will ship in a medium priority mail flat rate box at a TRUE shipping cost of $12.95. Thank you for viewing my listing.