Hello Lowfers, I've somehow lost the URL to a site which featured a multi-tube, untuned RF amplifier for the 136-137 kHz. band. Can anyone on this list point me in the right direction to it? Tnx in advance. 73, J.B., VE3EAR - VE3WZL Solar and wind powered Lowfer " EAR" 188.830 EN93dr http://www.hurontel.on.ca/~weazle