I was working on Krell S1200 output section and inadvertedly damaged the LED diode on the board. They are diagnostic diodes for use internally at Krell I think. I replaced it with a slightly different one from a car stereo . The original has 1.6v drop and car stereo one has 1.75. I had replaced bank of transistors due to hissing caused by high DC offset going into the output signal cap but still getting .15v dc offset which is the difference of the diodes (was previously getting well over a volt before replacing transistors).. With alot of modern diodes being sold for light output for lighting it seems like it may be tricky getting the right one. Tried contacting Krell but got corona virus message and they are not there according to message. Anyone know what these might be?
