08-01-2015, 08:46 PM
Hi Mark. I have that same gimmick cap in my 41-280. My guess is it works as a filter. I don't know exactly how, but others on this site can offer more info than I can. All I know is that I was told to keep it in the circuit or you can pick up a lot of "white" noise. Take care, Gary
"Don't pity the dead, pity the living, above all, those living without love."
Professor Albus Dumbledore
Gary - Westland Michigan