- Soldering gun tip - 2 Updates
- Yamaha Clavinova w/Rumbling Sound - 2 Updates
- Meyer Sound 833 problem - 1 Update
| legg <legg@nospam.magma.ca>: Sep 26 07:18AM -0400 On Sat, 24 Sep 2022 12:38:28 -0400, Bob Engelhardt >must be some problem". I can't see it, so I'm asking - what might be a >problem? >Thanks That's the way I did it in the late 60's, but only used the thing a few times in a month, ususlly on solder tag terminals. It was a what Bob Unruh taught in shops class at the local high school. RL |
| "Peter W." <peterwieck33@gmail.com>: Sep 26 05:44AM -0700 https://www.youtube.com/watch?v=DS4plN51Deg The Weller replacements are plated copper. Nothing special and not rocket science. The copper wire option will simply not last quite as long as an original as the plating resists damage from the flux, and does not anneal as easily (become soft). But if one is not pounding the tip on the workpiece, that should not be of any issue. Further, if one wishes to be 'elegant', use a hammer to dap the wire lightly to a flattened shape at the tip fold. Even a file to make a point. Peter Wieck Melrose Park, PA |
| Joe Jaramillo <joej1959@gmail.com>: Sep 25 11:23AM -0700 I have the same problem on a C 430. I'll be playing either quiet or loud and then a hear A rumbling noise that kind of trails off for a bit and then comes back. Did you ever find out what the root cause was? On Wednesday, March 12, 2003 at 9:56:01 AM UTC-8, Michael and Janet Inman wrote: |
| Jeff Liebermann <jeffl@cruzio.com>: Sep 25 07:40PM -0700 On Sun, 25 Sep 2022 11:23:10 -0700 (PDT), Joe Jaramillo >I have the same problem on a C 430. I'll be playing either quiet or loud and then a hear A rumbling noise that kind of trails off for a bit and then comes back. Did you ever find out what the root cause was? There's an important clue in the text: "It goes away when you plug headphones" My guess(tm) is it's some form of microphonics. That's where the speakers cause some electribuc component to vibrate, which then causes audible noises in the speakers. If the gain and phase of the amplifier is correct, it will produce low frequency feedback, which is the rumbling noise you hear. If the noise was a high pitched squeal, then it would be high frequency feedback. In your case, you have a "C 430". That might be a Yamaha NX-C430 speaker system. The system does not have any built in amplifier(s), so there's nothing wrong with the speakers. I suggest you remove your speakers from the amplifier or receiver case, and the microphonics will likely be reduced or stop. Incidentally, you're only 19 years too late to catch the original posters. -- Jeff Liebermann jeffl@cruzio.com PO Box 272 http://www.LearnByDestroying.com Ben Lomond CA 95005-0272 Skype: JeffLiebermann AE6KS 831-336-2558 |
| Trevor Wilson <trevor@rageaudio.com.au>: Sep 26 06:03AM +1000 I have a Meyer Sound 833 control unit on my bench. It has a weird fault that appears to centre around a 15kHz oscillation that affects one channel, directly, but is bleeding through to the other channel. Meyer Sound refuses to supply a schematic. They will repair it for a set charge of US$592.50 (nice round figure). That's a bitter pill to swallow, but it gets worse. I (and my customer) are here in Australia and I figure on the freight charges to blow that figure out to around US$1,000.00 or so. I am hopeful that someone has some experience with this product. Maybe even schematics. TIA Trevor Wilson -- This email has been checked for viruses by Avast antivirus software. www.avast.com |
| You received this digest because you're subscribed to updates for this group. You can change your settings on the group membership page. To unsubscribe from this group and stop receiving emails from it send an email to sci.electronics.repair+unsubscribe@googlegroups.com. |
No Response to "Digest for sci.electronics.repair@googlegroups.com - 5 updates in 3 topics"
Post a Comment