Microsemi AN1819 500W Amp Eval Board The new version is form

The new version is form

Look for an upcoming 'hack' to add CIV output to deliver band change info to a QRO amplifier and the Hardrock-50 simultaneously

SPI data input

2:1 up to 250 MHz

Current Hardrock-50 owners should consider upgrading the rear panel board in their amplifiers if:

Microsemi AN1819 500W Amp Eval Board The new version is formThis amplifier is a 500W or 700W design based on the Microsemi VRF2933 or VRF2944 MOSFET. We have an eval board that supports both devices. The board measures 10 X 15cm (4" X 6") and it is 1. 6mm (0. 063") thick with 2 oz copper and emersion gold plating for good heat dissipation and maximum conductivity. Run it with a pair of VRF2933's at 60V for 5W in, 500W output or use a pair of VRF2944's at 65V for 10W in, 700W output. More technical details can