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I followed reasonable troubleshooting procedures like I should have done in the first place , before I went through and replaced all the electrolytics...
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Dragging up an old thread here but I finally got around to figuring out what was wrong with this amp and thought I'd mention it in case it helps anyone. It...
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No takers? I misleadingly refered to the output transformer in th OP. It's not really an output transformer but rather a phase inverter...er, I guess looking...
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Weird noises from silvertone
I've got an amp that makes weird noises fairly regularly. I've attatched a clip since it's a little hard to describe, but if I were to describe it I'd say...
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Another one here. I'm in the middle of fixing a bandmate's 1484 that has an open choke. Just got the replacement today, actually. I got one of these. 7H,...
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Thanks for the info, J M. Good stuff. Can't wait to try this in the future. As for this speaker, it's toast. I found it had a much bigger problem than an...
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Well that's pretty much what I'm asking them to do . I sent them an email. We'll see what they say. I'll also get some measurements off the speaker tonight....
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Heh. s'pose I could do that. I'll see what they say.
They do say this in bold on their recone parts page "We DO NOT sell recone kits....
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C12Q Speaker Recone Parts
I'd like to take a stab at reconing a 70's Jensen C12Q that has an open coil. Would anyone be kind enough to tell me which of these Weber parts are needed...
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Two Prong Power Cord Replacement
For the umpteenth time I'm replacing a two prong power cord on a friend's amp and it's got me wondering how other folks handle some of the issues that come...
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Sorry to drag up an old thread. So I thought I might try this subchassis idea on a resurected project after finding a brass bar at the hardware store that...Last edited by Ptron; 05-25-2011, 02:51 AM.
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Anyone mentioned these guys yet? SumR - Richard Sumner Technology Or should I say this guy? I had a custom power/ot toroidal set made by them. They were one-offs,...
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Oh, really? I had assumed their primary function to be preventing the output from shorting to ground while plugging in the headphones. Well, I'll reduce or...
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I breadboarded the Ruby with the tone control inserted. I used a 2k trimpot for the gain and a 100k for the volume because it's what I had. I kept the two...
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Oh, no, I meant a with a different circuit, but I did try it with 15V and it seemed to handle it. I wouldn't do it that way permenatnly even if it was rated...
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Yeah, On the bread board they were just between the rails but still helped tremendously. I'll put it as close as I can in the actual layout.
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Ok, Now we're getting somwhere. More complicated but this works loads better. I put Don Tillman's jfet preamp in front primarily as a buffer. This was because...
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Ok, should've thought of this sooner. Looks like it's the battery that struggles to provide the current, not the lm386 itself. I thought the cap on the bypass...
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Trying to go as simple as possible, I've started out breadboarding a LM386 amp. The circuit is pretty much straight from the datasheet except I'm driving...Last edited by Ptron; 05-08-2011, 04:18 PM.
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Thanks folks for getting me pointed in the right direction. Lots of good ideas there. I had been thinking of something that could use two 9V batteries for...
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Instrument headphone amp
I'm looking for some simple ideas for a battery powered, intrument level to headphone amp. It's sole purpose will be for tuning my pedal steel in noisy bars...
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