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Rockola Super Sound Model 490 sound Trouble
Posted: Tue Jul 17, 2007 5:16 am
by edisonsclone
My Rockola Super sound is giving me a grumbly/static sound when a record is played. I think I have it pinpointed to a small unit, known as the audio distribution assembly. This unit is made up of 2 speaker output transformers, and my guess is they need to be replaced. I am wondering if any one has ever had this trouble and could let me know if this infact is what needs to be replaced.
Posted: Wed Jul 18, 2007 2:21 am
by Record-changer
Grumbly sounds are usually caused by loose connections. I have never found such a sound from a transformer. More likely candidates:
- Plugs and sockets.
- Potentiometers (controls)
- Switches
- Tube sockets
- Bad solder joints
- Bad speakers
- Bad tubes or semiconductors
- Resistors going bad
- Leaky capacitors
RE:GRUNBLY JUKEBOX SOUND
Posted: Wed Aug 08, 2007 9:42 pm
by vintagetvdoctor
Hi! Have you re-capped the amp yet? All the old capacitors need to be replaced & it should sound fine. I do this for a living, so if you are in need of help, give me a call @ 269-978-7213 & I'd be glad to help you out. Regards, Ross