Can you identify this diode or its logo? I'm hoping to at least learn who manufactured it to narrow my search.
Electronic – Can you identify this DIODE or its logo
diodesidentification
Related Solutions
Micro Power Systems: http://www.datasheetarchive.com/pdf-datasheets/Datasheets-111/DSAP0025577.html
Found it. MPC is Monitor Products Company, bought out by MMD Components (MMD Monitor/Quartztek Frequency Control Products) in 2002.
970T Datasheet Low-Cost, Full-Size TTL-compatible Clock Oscillator
Best Answer
Searching for "2020R Diode" shows several options, such as On-Semi MUR2020R in the correct TO-220 package.
This may not be the exact manufacturer, but it will likely be a compatible alternative. There are many series numbers that are made by multiple manufacturers, including unnamed fab houses.