I acquire this old scope cheap and found the firmware is still 22.01. I need to find a small USB drive using CF card of 1GB before I can update the firmware to 22.16.
I do not like the design of the power supply as some regulators are without heatsink and also two of the heatsink is too small. After operating it for 15 minutes in 30 degC room temperature, I can smell the hot air come out from the top of the scope. I bit worry on the temperature of the heatsink and also it is very close to the E-cap which will speed up the aging effect!
