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40-190 hums intermittently
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Hi all - new to this great group and pretty inexpereinced with radios. Have two Philcos, a 37-620 and 40-190. The former was professionally repaired by a retired repairman (found it thrown out in the street!).

The 40-190 is in pretty good shape, except for some dings on cabinet, including a tiny bit of missing veneer. It is also missing the cardboard tube around the built in antenna. The unit does play both AM and "Police" bands, but there is a noticeable hum. The odd thing is that this comes and goes if I turn and/or tap the volume button. The shortwave stations similarly drop in and out, with pretty poor reception overall.

I have tested out all the tubes and they were ok when I last checked - I do own a tube tester. So: what is my next step(s)? Should I replace the capacitors? Does the volume pot need to be cleaned and or replaced? Anything else? Any advice appreciated. Thanks!


Messages In This Thread
40-190 hums intermittently - by fossilexpress - 07-23-2013, 11:50 PM
RE: 40-190 hums intermittently - by fossilexpress - 07-24-2013, 10:04 AM
RE: 40-190 hums intermittently - by BrendaAnnD - 07-24-2013, 11:58 AM
RE: 40-190 hums intermittently - by fossilexpress - 07-24-2013, 04:17 PM
RE: 40-190 hums intermittently - by BrendaAnnD - 07-24-2013, 04:48 PM
RE: 40-190 hums intermittently - by Mondial - 07-24-2013, 08:02 PM
RE: 40-190 hums intermittently - by fossilexpress - 07-24-2013, 08:48 PM
RE: 40-190 hums intermittently - by fossilexpress - 07-24-2013, 09:32 PM
RE: 40-190 hums intermittently - by vinzer - 07-24-2013, 10:29 PM
RE: 40-190 hums intermittently - by fossilexpress - 07-24-2013, 10:34 PM
RE: 40-190 hums intermittently - by BrendaAnnD - 07-24-2013, 10:42 PM
RE: 40-190 hums intermittently - by klondike98 - 07-24-2013, 10:43 PM
RE: 40-190 hums intermittently - by fossilexpress - 07-24-2013, 11:08 PM
RE: 40-190 hums intermittently - by Phlogiston - 07-25-2013, 12:30 AM
RE: 40-190 hums intermittently - by fossilexpress - 07-25-2013, 01:10 AM
RE: 40-190 hums intermittently - by codefox1 - 07-25-2013, 09:45 AM
RE: 40-190 hums intermittently - by Raleigh - 07-27-2013, 02:02 PM
RE: 40-190 hums intermittently - by codefox1 - 07-28-2013, 12:29 PM
RE: 40-190 hums intermittently - by fossilexpress - 08-01-2013, 06:31 PM



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