Chan, nothing happens when I click onto that link you sent. Jim On Wednesday, November 8, 2023 at 02:21:16 PM EST, Chan Gade via Jukebox-list jukebox-list@lists.netlojix.com wrote:
Since it is affected by the volume control we can assume the problem is ahead of it.
Listen to these two sound files. http://www.fileconvoy.com/dfl.php?id=g0bef791efb3d638b10005251794e2757a4b661... First is 60hz. This is defective ground shielding.
The second is 120hz. this is inadequate filtering of the B+ or excessive drain on it. The latter is unlikely here, but check for approx + 23 volts DC (clean –no ripple) on pins 2 & 23 on the preamp/agc board.
All this assumes you are checking with no phono input connected.
RobNYC On Wednesday, November 8, 2023 at 02:36:00 AM GMT-5, Jim McClave via Jukebox-list jukebox-list@lists.netlojix.com wrote:
Loud buzzing noise whenever you play a record. Buzzing varies with volume control. replaced all the big electroltics already . any ideas: _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/%C2%A0 _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/