|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
173.247.0.211
I finally got a recently acquired Scott LT 110 to play music, but it has a mild 60 Hz (?) hum.
Still has the original multi-section caps...is this the problem? Or is there an adjustment I am missing?
Replacements for the multi-section caps are available, but they cost more than I paid for the LT 110!!!
Follow Ups:
Make sure you have the volume control on the front of the tuner turned all the way up. If you have power supply hum, you will accentuate it if you are not running your output full tilt.
I've been doing a fair amounts of tuners as of late but mostly Mcintosh..If you replace the can that you push on that gets it to clear up the hum,that will fix unit..It's very unlikely it's a solder connection...The cap itself is making connection when you push on it inside the can because it probably opened up...You could jump a single section in there for now and just run wires to it..Sub out each section one at a time until the hum clears up.
You you can use a higher value cap and voltage with no problems.
Honest amplification is better than excessive 2nd order distortion anytime.
Mike...long time ago Citation IIIX...
I've found the bad connection...got the tuner working by tightening the mounting studs for the can cap.
Tuner works and sounds ok, but still has a 60 hz hum, which I suspect as you suggest, is the can cap.
I shelved the Scott for a while, scrounging up parts to replace all the caps.
That should get the hum.
I discovered that if I press down on the larger of the two multi-section caps, the hum goes away which would indicate to me there is a bad solder joint somewhere in that area...
Back to the workbench.
The power supply would be the first place I'd be looking for that hum. And even if it's not the cause of the hum, getting those old caps replaced is cheap insurance against an expensive repair caused by those caps failing.
You don't have to use multi-section can caps, unless keeping the tuner looking stock is important to you. If performance is what you're after, you can do better than multi-section capacitors.
If you aren't into DIY, Terry DeWick is "just up the road" from you. He seems to be the go to guy, especially where tuners are concerned.
Thanks. I am very much aware of Terry DeWick, but it is my understanding he has slowed down a good bit and has a large backlog of work.
I am not sure if I want to leave the 110 stock or not. It does sound pretty good, even with the hum.
I will probably just replace the multi-section caps with new individual electrolytics.
I think that's a wise choice.
If resale value is a concern, there's always re-stuffing. (link below)
than that would be a bargon to repair
Then that would be a bargain to repair???
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: