STK401-140 2-Channel AF Power Amplifier + Heat Sink Compound ORIGINAL NEW SANYO

welcome back to part 2 of the video about the Sanyo model DCA at 4:01 amplifier in the last video we determined that one of the PNP transistors in the output stage is bad there it is there's a c2 SB 507 transistor now you can still get replacements for this but they all come from brands that I have never heard of so while I'm sure the technical specifications are going to be at least roughly the same they just won't have anything to deal with the original sanyo transistor so I thought well I might as well put in some entirely new transistors then so I took a look through all the transistors that I have in stock and I came across a suitable replacement the two SP one three seven zero there it is the technical specifications are almost entirely the same the only difference is this old transistor has a transit frequency of five megahertz the new one has a higher transit frequency of fiftee