I had to scrub the alkaline D cell leakage from my DX-392 several months ago.

I guess I should leave out the D cells. I don't use it portable but, instead,
use a regulated power supply I built for it.

I know when the AA's go bad, because they are there to retain the memory.

I have about 50 things in my house that use batteries and half of them use
alkalines. I need to monitor them better. It's certainly less trouble than
scrubbing. Too, alkaline leakage will destroy the cad plating on contacts.

Bill, K5BY