Got the amp a couple of weeks ago and it sounded very nice. Changed out the stock tubes and put in a JAN 12AU7 in V1, a JAN 12AX7 in V2, a JAN 6829 (12AT7) for the PI, and a pair of Soviet 6P14P-EV for the power tubes. When I was checking the bias (which was way cold stock), I couldn't help noticing the sketchy caps on the PCB. The warranty had to be voided. An order was placed with Mouser, and out came the soldering iron. Here's the overview of the innards. The pair of brown booger tone caps. The main power cap, Eleson? The other power caps for the plates and the pair of "Rubycon" (more on that later) caps for the 15V rail. Finally, the 4 small caps for the bias and the 15V rail. The new caps. Nichicon for the main power cap. Panasonic for the rest. WIMA and CDE Orange drops for the film caps. After. The two 2.2 nF orange drops were a bit of a squeeze. Reliable electrolytic caps! Finally, the desoldered caps. The 63V 220uF cap with the uncut leads is a real Rubycon for comparison. I probably didn't have to change the film caps, but since I was in there, I might as well. Sonically, there's not much difference that I can tell (Disclaimer: My ears are shot). However, I am now assured that the chance of an electrolytic cap blowing and taking down the amp is significantly decreased.