Need some advice from some of the more experienced amplifier/homebrew guys. I’m building a homebrew gs-35b amp. I’ve had good luck tapping the low bands....160 80 and 40. I’m using my antenna analyzer into the output s0239 with the relay keyed and resistors equal to my calculated plate impedance from anode to ground. The low bands were easy to tap so I thought I’d try 10 meters......haven’t attempted 15 or 20 yet. A very weird thing is happening with the SWR on my analyzer trying to do 10. The SWR is continually up and down really jerky like. It’s almost like a bad connection or such. I cannot find a point at which the SWR stays low indicating resonance, it’s just all over the place jumping up and down mostly when making adjustments to the load cap. Has anyone run into this before? It kind of acts like a bad connection, but I know for a fact it isn’t at the bandswitch itself. The high band coil is wound using 1/4” copper tubing and I’m using 1/4” copper strap from the band switch to the tank coil. Any suggestions. This kind of has me baffled.