[KI4WCQ]

I have concluded that the so called "micas" may be the problem with the SW band since everything else checks out.  Coil resistances, band switch cleaned and tested for continuity at the various positions, voltages within 10 volts or less from schematic, new RF and oscillator tubes ....resulted in nada.  If everything measures according to the schematic and the micas are original, I don't know where else to try to fix the SW problem.  I'm going to switch out 4 of them and l'll lpost the results.  I simply don't know what else to try to get the SW band to oscillate.