Naylor SD 60 problem

[passfan]

I wonder if this could be noise from the bridge. I used 4007's instead of 5408's. I have some .01 coming in monday to install. If it were switching noise wouldnt it show up on the scope ?

[Bob S]

Puzzling - if you can hear it then it should be easy to see on your scope.
Just might be your hearing.
Tinnitus is no joke so I hope it's not that starting up.
Keep us posted & Good Luck.

[Leo_Gnardo]

Besides all the electronic & psycho-acoustic stuff, is there possibly something inside the amp that could be "ringing" physically? I've noticed in old Fender combos, if the "bathtub" or "doghouse" cover over the caps doesn't have weatherstripping applied to the metal, it can "sing along" with the notes in a most annoying way. Similar can happen with a reverb tank. The metal box can clang badly if not covered with the usual "sock". In extreme cases I cover the metal with strips of wide weatherstrip intended for mounting camper tops to pickup trucks.

[passfan]

Nope . its me. Sitting here in the dead quiet drinking my morning coffee and I can hear the same tone in my ears. It hasnt been a problem for me because I dont play high gain amps. It would appear that the upper gain is aggravating my condition. It is stable to all the stops now and as quiet as it could possibly be given its gain structure. Come and get it.

[Leo_Gnardo]

Nope . its me. Sitting here in the dead quiet drinking my morning coffee and I can hear the same tone in my ears. It hasnt been a problem for me because I dont play high gain amps.

Welcome to the world of tinnitus. Stimulants can make it worse so go for the decaf. Gain isn't so much a problem as loudness in general. Then again hi gain = distortion = extra overtones that can damage hearing & set off tinnitus. It's good you have some quiet time to analyze the problem. For so many people the TV, computer, stereo, wife, kids, toys etc are going all the time without a break for silence ever. Give those ears a rest whenever you can. Again, hearing protection when using power tools & other loud stuff. Just for fun sometimes I put in foam earplugs for a couple hours even though it's relatively quiet at my house. When I take 'em out I swear my hearing's gotten better if only for a short while.

If you're taking meds of any sort ask your doc & mention your tinnitus. Many drugs can bring it on or make it worse. Sometimes a high ringing tone can signal occlusion in arteries especially carotid serving the head. Don't mean to get you worried but it's best to discuss this with your MD & make sure it's just worn out ears. OTOH if you do need to get those carotids reamed out, you'll be so much better off afterwards with a proper blood supply to the brain. Some friends & relatives have had this done & reported very positive results.