Hi, I know it's a long shot but has anyone seen a put together optoisolator unit like this? The left unit is an led and the right unit is a phototransistor. This is from a Gallagher MR2500 farm fencer. It's used to couple a sample of the high voltage pulses to a monitor circuit that lets the user know the output status of the fencer at a glance by flashing a green led if the output is ok or a red led if the output is low due to a leaky or shorted fence. The lead wires have rotted off due to moisture getting into the fencer and I am trying to repair the unit. The second photo is the fencer's circuit board. There are 2 of these optoisolator units as can be viewed.