Does anybody know if the Hammer HQ129X had a different 3rd IF where the cathode went to the gain control line via a 680 ohm resistor instead of 300 ohms to ground, the screen fed with a 2200 ohm instead of a 47K and the primary of the IF fed by a 10K instead of a 2200 ohm? Or did someone modify my receiver? Charlie, W4MEC in NC