Well, thanks for all of the information already! :) On the 101E I must not have noticed the absence of the terminator plug. When plugged in, it now will heat, but there is no TX. Also, it seems like the receiver isn't behaving that well anymore, with relatively low volume and the preselector doesnt seem to peak. Additionally, a somewhat strange smell comes from the area of the final tank. Does this help clue in any? 73, Chris