I did some work on my Pioneer SG-9800 equalizer today. I soldered in three new pots that I got from eBay. I also replaced the tape monitor switches and the attenuator switches with some that came from an old Sharp tape deck (motto : never throw anything away). I had to trim down the PCB pins with a Dremel, but they fitted just right after this. I also took the chance to replace the LEDs, the three round ones behind the power, tape and overload lights, plus the 24 that light up the sliders. For these, I used Mouser part number 604-WP113SRDT, these are listed as 2mm x 5mm x 7mm. I've heard that 2mm x 4mm LEDs will fit exactly, but these ones have a light output of 80mcd. I simply shaved the long edges down with a Dremel, and then finalizing them by rubbing the edge on some sandpaper. The three pictures below show the new LEDs on the right bank, with the old ones on the left bank. Quite a difference don't you think? Of course, the camera makes them look WAY brighter than they really are, at times the shutter speed was dropping down to 1/2 second. Plus, these were all taken with the slider knobs removed, except on one for comparison. The pictures were taken in a darkened garage, with the only light coming in from a window to the left. This picture was taken with the slider knobs installed. And this one with the overhead light turned on. Lee.