I know you said you checked your handiwork. But are you absolutely sure? I had low voltage at R30. And as the book suggested, I had the wrong cap installed at C72. It should have been a 271 and I managed to put in a 221. When I fixed that I had more than enough voltage and adjusted the can for the required 6 volts. Bruce - W8FU I get only 4.56 volts on R30 max.