Thanks for the definitive info, Jim! Of course wood is transparent to magnetic fields -- I hope I would've realized that without prompting once I've gotten past being intimidated by this whole process, haha. (Maybe not!) It's very helpful to know that they came with wooden shims originally, though -- that totally puts my mind to rest that this doesn't have to be considered a 'quick fix' kind of solution. I really want this thing to play the best it can for a long time. π
You know, I should've also realized coil vibrations are lost energy. I do a lot with speakers and turntables, and everything in those realms is all about management of mechanical energy. I guess I really need to just get over this whole 'big scary electric motors' thing once and for all. π Thanks again! Robert ________________________________ From: Phono-L <phono-l-boun...@oldcrank.org> on behalf of Jim Nichol via Phono-L <phono-l@oldcrank.org> Sent: Tuesday, November 20, 2018 3:07 PM To: Antique Phonograph List Cc: Jim Nichol Subject: Re: [Phono-L] Victor VE8-12X tonearm mounting bracket No, Robert. Wooden wedges between the coils and the steel magnetic core do not cause any losses. They are transparent to magnetism. Also, the motor will be more efficient if the coil is NOT moving or vibrating. Movement wastes mechanical energy. When I worked in the industrial world, a transformer with a loud hum was almost always caused by the wooden wedges falling out. There are supposed to be wedges between the steel core and the windings in a transformer to prevent movement and hum. Jim Nichol On Nov 20, 2018, at 1:15 AM, Robert Wright via Phono-L <phono-l@oldcrank.org<mailto:phono-l@oldcrank.org>> wrote: Thank you, Mike! Hahaha, my phone's speech-to-text function butchers what I tell it so frequently that I read right through your 'mess' no problem. π So if I stick popsicle sticks between the outer coil windings and the core, will any voltage be lost/wasted from anything being aligned differently than originally manufactured, or does that not make any real difference in this situation? I did try the plug in both polarities -- no change in hum volume. It has worked on plenty of 60s and 70s portable phonos I've had, though. Best, Robert ________________________________ From: Phono-L <phono-l-boun...@oldcrank.org<mailto:phono-l-boun...@oldcrank.org>> on behalf of Mike Stitt via Phono-L <phono-l@oldcrank.org<mailto:phono-l@oldcrank.org>> Sent: Monday, November 19, 2018 10:08 PM To: Antique Phonograph List Cc: Mike Stitt Subject: Re: [Phono-L] Victor VE8-12X tonearm mounting bracket Man my last email was a mess. Popsicle sticks can be used as shims to "tighten" up the coils. They tend to shrink. Glyptal is a red slushing type of paint that insulates and drys hard. It is common for use in re-insulating coils. The spray type isn't nearly as good as the brush on type. It shouldn't make a difference but you might try turning the plug around. If that should elimate the hum, test for voltage between the motor and a known ground. Before polarized plugs touching say a radio chassis and a water pipe would zap you, 115 volts. Mike Damn tablets! π On Mon, Nov 19, 2018, 5:30 PM Mike Stitt <smst...@gmail.com<mailto:smst...@gmail.com> wrote: Loose coils can cause a hum type of sound. More than likely the swab used was glyptal. If the coila are lose use popcycle sticks. Mike On Mon, Nov 19, 2018, 5:21 PM Leroy Barco via Phono-L <phono-l@oldcrank.org<mailto:phono-l@oldcrank.org> wrote: I once had an electric credenza with a bad hum in the motor. I found a small motor guy who diagnosed that it had βdried out β. He had a solution he swabbed on several times that permeated the windings and fixed the hum. Iβm like Sgt. Schultz on the details. βI know nothing!β LeRoy On Mon, Nov 19, 2018 at 12:25 PM Ron L'Herault via Phono-L <phono-l@oldcrank.org<mailto:phono-l@oldcrank.org>> wrote: The Victor book gives some tips on reducing hum, such as checking the plate tightness, and adding felt between cabinet and motorboard. There are no circuit components other than switches. Have you checked with George Vollema for the tone arm bracket? I understand that Wyatt Marcus is doing really good Orth reproducer rebuilds. Ron L From: Phono-L [mailto:phono-l-boun...@oldcrank.org<mailto:phono-l-boun...@oldcrank.org>] On Behalf Of Robert Wright via Phono-L Sent: Sunday, November 18, 2018 9:03 PM To: Phono L Cc: Robert Wright Subject: [Phono-L] Victor VE8-12X tonearm mounting bracket Hey everyone, hope all is well with you folks! I need a whole new tonearm mounting bracket assembly for a Victor VE8-12X that I just got. This one is totally and utterly wrecked. Anyone know who's selling repros? Ron Sitko? JAS? Anyone have current contact info for a dealer who would have some? Also, has anyone rebuilt one of these electric platter motors? This one works great, but it has a really loud mechanical 60Hz hum. I want to replace any components in the circuit that I can, and also do a full cleaning and lube job, but I would really like to know what I'm getting into first. And lastly, anyone have Walt's current info in case I want to have him rebuild this reproducer? Thanks a million! Robert _______________________________________________ Phono-L mailing list http://phono-l.org<http://phono-l.org/> Unsubscribe: phono-l-unsubscr...@oldcrank.org<mailto:phono-l-unsubscr...@oldcrank.org> _______________________________________________ Phono-L mailing list http://phono-l.org<http://phono-l.org/> Unsubscribe: phono-l-unsubscr...@oldcrank.org<mailto:phono-l-unsubscr...@oldcrank.org> _______________________________________________ Phono-L mailing list http://phono-l.org<http://phono-l.org/> Unsubscribe: phono-l-unsubscr...@oldcrank.org<mailto:phono-l-unsubscr...@oldcrank.org>
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