Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Tuned radio hum
#11

Greg

This is a different issue. You have interference emitted by a load. I have something else - my wiring becoming a part of a receiving contour and then 60Hz modulating the received signal.
And in fact when I turn a particular load (which is a CCFL and not incandescent) - the hum disappears. It is without any load that it is heard, only when tuned in.


Messages In This Thread
Tuned radio hum - by morzh - 01-08-2014, 03:11 PM
RE: Tuned radio hum - by BrendaAnnD - 01-08-2014, 03:30 PM
RE: Tuned radio hum - by morzh - 01-08-2014, 03:38 PM
RE: Tuned radio hum - by LASJayhawk - 01-08-2014, 05:16 PM
RE: Tuned radio hum - by Chuck Schwark - 01-08-2014, 05:39 PM
RE: Tuned radio hum - by morzh - 01-08-2014, 05:53 PM
RE: Tuned radio hum - by BrendaAnnD - 01-08-2014, 09:23 PM
RE: Tuned radio hum - by morzh - 01-09-2014, 12:09 PM
RE: Tuned radio hum - by TA Forbes - 01-11-2014, 11:49 AM
RE: Tuned radio hum - by gregb - 01-16-2014, 02:11 PM
RE: Tuned radio hum - by morzh - 01-16-2014, 02:26 PM
RE: Tuned radio hum - by gregb - 01-16-2014, 05:12 PM
RE: Tuned radio hum - by morzh - 01-16-2014, 05:33 PM
RE: Tuned radio hum - by gregb - 01-16-2014, 06:05 PM
RE: Tuned radio hum - by David - 01-16-2014, 07:07 PM
RE: Tuned radio hum - by morzh - 01-16-2014, 08:59 PM
RE: Tuned radio hum - by David - 01-16-2014, 09:13 PM



Users browsing this thread: 11 Guest(s)
[-]
Recent Posts
American Bosch Model 802 auto radio
Hi Arran ,  Thanks for your help with this radio.And especial thanks for letting me know to look it up under United Ame...Antipodal — 04:32 AM
Philco 60 Squealing
Usually a wave trap is for keeping IF signals from entering the antenna and from leaving the antenna. You feed an IF sig...RodB — 09:30 PM
Philco 60 Squealing
I just peaked it for the best signal at 600. NULL it for IF frequency, originally it would have been null for 500kh...Chas — 08:05 PM
Philco 60 Squealing
Wavetrap no longer matters.morzh — 05:19 PM
Philco 60 Squealing
Rod, I had checked out your suggestions but did not help. I did solder the ground rivets to the chassis as Chas suggeste...dconant — 04:52 PM
37-690 Bass Choke Replacement
Yeah, I know, Mouser and Digikey don't have "big iron" components. For some reason Philco was messing with the...Radiodial — 04:25 PM
37-690 Bass Choke Replacement
Yes, I just had to deal with that while repairing the 37-604 Philco. Exactly that value choke was gone. And the current ...morzh — 03:52 PM
37-690 Bass Choke Replacement
Ah, now where to find one. I've into this before on smaller sets, I now recall. Hammond makes one that is only rated...Radiodial — 03:27 PM
Philco 38-7 Speaker
Ask the admins to put them together. As for the renaming, while inside the thread, you simply press "New reply&quo...morzh — 02:23 PM
37-690 Bass Choke Replacement
This is the parts catalog. 32-7528 choke is 65H, 10mA, 2,250 Ohm inductance. Find a suitable one.morzh — 02:18 PM

[-]
Who's Online
There are currently 4019 online users. [Complete List]
» 3 Member(s) | 4016 Guest(s)
AvatarAvatarAvatar

>