UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - MW hum - higher frequencies only

agardiner · 21st Jun 2021, 10:45 am

Interesting. Well, yes, have tried on a few battery sets; same problem.

My car does have MW, (and indeed SW) and is the only set that does not appear to manifest the problem.

One interesting thing I noted over the weekend - hum is much worse if I am near the set. If I move away by at least 5 metres then the hum becomes barely audible.

21st Jun 2021, 10:45 am	#7
agardiner Octode Join Date: Sep 2020 Location: Thetford, Norfolk, UK. Posts: 1,741	Re: MW hum - higher frequencies only - 200Hz Interesting. Well, yes, have tried on a few battery sets; same problem. My car does have MW, (and indeed SW) and is the only set that does not appear to manifest the problem. One interesting thing I noted over the weekend - hum is much worse if I am near the set. If I move away by at least 5 metres then the hum becomes barely audible.