The gate time pot on my 5342A had been dodgy for some time and just getting worse. No doubt I'm not the only one who has come across this issue. I found RS 790-4243 to be a good substitute for the original notwithstanding the plastic shaft and different body. It's quite a job to get the front panel out but I'm pleased with the result. Unlike the bloke in the Youtube video, I didn't need to make any other modifications to maintain functionality.
