It sounds like the osc could be at the wrong frequency when switched to LW, osc frequency for 198Khz (R4) = 668Khz, a quick f/counter or scope check would confirm what's what if there's nothing else obvious.
Lawrence. [EDIT: If scope/counter aren't available you could beat it with another radio tuned to MW (frequency wise that is)]
Lawrence. [EDIT: If scope/counter aren't available you could beat it with another radio tuned to MW (frequency wise that is)]







