I got this done in about 6 hours. Having right tools makes a lot of difference with metal working. Changed R19 and R20 with 1.5 ohms/5W and put in 4 pin sockets as per Shannon's recommendation. Worked like a charm the first time. Dead silent and everything seems to run cool. I listen to the amp briefly and boy am I impressed right off the bat! I really dig these Transcendar irons. They sound really clean with good solid bass. I really like this 300B amp with Transcendars better than the 6B4G version with James iron. Here are some pictures. Sorry, my camera doesn't do too well indoors:
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