My weather station has been fully functional for many years, but the wind direction and velocity has stopped working. I suspect one or more of the IR diodes and/or the photo transistors have failed. I have been unable to locate replacement parts or to cross-reference the original part numbers. The diodes are TIL-32 and the transistors are TIL-78. I would appreciate any information on where I might find these parts or where I might cross- reference them to an available substitute. Thanks in advance to anyone who responds to this request.
17 years ago