I posted this over at the Webervst Transformer board but not sure it gets near the traffic as here... OK, bear with me... I recently replaced all the electrolytics on my '65 GA15-RVT Explorer. It seemed to be working fine for a while, then cut out on me (after making a hissing sound), and I smelt (smelled?) a burning smell. I powered her down. Later, I thought I would investigate more and tried it again (ill-advised I know). It did the same. Worked for a while then cut out. After poking around I noticed that there was melted epoxy (small amount) dripping out of the OT. I know it's recent because I had also replaced the speaker and it dripped on the new speaker frame. These amps, I have learned, have a notoriously small output transformer and I think the after effects of the new caps (all original specs) have pushed the OT too far, or it was already damaged from a bad filter cap. (one was leaking/bulging). I suspect the heating up of the OT is melting the old epoxy after it runs a while. I guess my questions are (1) any troubleshooting advice? and (2) what recomendations for a replacement OT? I have a couple of places I have located to get a used Pro Jr, or Blues JR OT (cheap), and I have also considered a Hammond, or Weber (middle of the road price). And, am also curious about one of the newer OT's designed for the 18 watt crowd. Can anyone recomend one of these, and if so what are the pluses and minuses of each? Thanks a lot guys. I am pretty green at the repair side of all of this, but I am also the type that will study for a long time before taking action. Thats why I am looking for input. Thanks!