Hi Matt,
Have you measured your RF voltage at the output of T1 yet with your probe? The RF should be about the same as at the BS170¡¯s, this is the junction of C32, C34, T1.
C32 feeds the voltage doubler to make sure the 1N4007 pin diodes switch so there should be RF voltage on both sides of C32. With your volt meter you should measure DC voltage at the D7,8 junction higher than your B+ on TX (correct me if I¡¯m wrong Hans). C34 is the path of TX output to the selected LPF. If your RF probe is measuring about the same level on both sides of C34 then it comes down to the LPF selection and associated switching components. This brings in all the 47uh chokes that you installed if there is B+ across all of the chokes feeding the LPFs then there maybe a problem with the BS170¡¯s not being switched on to select the filters.
Skip Davis, NC9O
Skip Davis