Double Side Band (DSB) Generation II

I made some progress with my NE612 DSB Generator. I built it up in a shielded box and I have observed at least a reduced carrier of 20 db below the side bands now. My problem was with my measurement receiver, it was receiving the radiated carrier! I also have attenuated the Si5351 oscillator separately and not in the same box and then injected it into the NE612. Note the 10 db pad. Next I will try a balancing pot across pins 1 and 2 with the wiper to ground. I should be able to get 30 db of reduced carrier with the NE612. The audio fidelity is very good and I believe this will be able to produce eDSB (Extended Double Side Band).