I ordered a couple NTE289A replacements and they seem to be ok. But they are supposed to be paired with 290A. I'm working on the power supply board for sx 950. All I could find were the NTE replacements and I couldn't get the 290 to replace the 2sa720's. Someone had replaced one of the 1318's with a tip31b and it was working but was noisy. Just wondered if any one has any other replacements for 2sc1318 or 2sa720?