Hitting the road to drop of my entry into the ARRL Homebrew Challenge 3 (challenge to build a complete amateur radio from scratch). This is for the 10m and 6m class.
TX power is about 70-75 watts on both 10 and 6. It uses the NXP BLF647 LDMOS for the PA, an Si570 for the VFO, AD8009a current feedback op-amps for the pre-driver and first IF amplifier. It also uses lots of old school parts for the chassis and front panel controls (each of which has an easy-to-find modern equivalent).
I will post two youtube videos soon. One on the construction of this radio and the 2nd on how to use this radio with an on-air demo.
73, Greg N8ZRY