Hey folks.... I'm in a quandry... I have a TS85os that works fine, S/N series 40 million. It has the old series DDS IC's on the board but years ago, I replaced the bypass caps before they exploded their guts onto the PCB. I am considering buying an aftermarket board that I know work as well as the original, just in case those IC's fail. I guess my question is, what caused the failures? Has it ever been determined definitively ? Other than the guts eating away the traces underneath the caps, was it the caps failing which caused problems with bypassing noise/glitches on the VCC lines that went to the IC's. I've had this radio since the mid 90's and except for the tuner motors squealing which I fixed, the radio just works. I have since bought a TS590SG which I like a lot but I also can't let the 850 go so it is my back up radio which I still use once or twice a week. Is my 850 living on borrowed time? The replacement is about $300. I don't have a problem buying one if one or more of those DDS IC's demise is inevitable. I guess if I buy a replacement board and I never need it, I can probably sell it for close to the price is now... Thoughts???