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sam@repairfaq.org (Samuel M. Goldwasser): Nov 29 10:47AM -0500 Purchased Original Apple 5 W charger on eBay in sealed box. Very convincing but almost certainly all a fake:   http://repairfaq.cis.upenn.edu/Misc/audiofaq.htm#audipafc1   -- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/ Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/ +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html   Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs.

sam@repairfaq.org (Samuel M. Goldwasser): Nov 29 10:52AM -0500 Purchased a 5 W A1385 on eBay sealed in Apple box. Very convincing but almost certainly fake:   http://repairfaq.cis.upenn.edu/Misc/audiofaq.htm#audipafc1   -- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/ Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/ +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html   Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs.

sam@repairfaq.org (Samuel M. Goldwasser): Nov 29 10:53AM -0500 Purchased 5 W cube on eBay in sealed Apple box, but almost certainly all fake:   http://repairfaq.cis.upenn.edu/Misc/audiofaq.htm#audipafc1   -- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/ Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/ +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html   Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs.

Taxed and Spent <nospamplease@nonospam.com>: Nov 29 07:26AM -0800 > wire (I didn't last time) but I'd like to see some videos to build up my > confidence. BION last time I was so lost, it was late at night and I prayed > for half an hour before I got it to work. Much obliged   https://www.youtube.com/watch?v=gmDj6i4pGDQ

Hugo <f6ceedb9c75b52f7fcc0a55cf0cfbf5d_1089@example.com>: Nov 29 02:37PM responding to http://www.electrondepot.com/repair/icepower-200asc-amp-module-165648-.htm , Hugo wrote: Thanks for all the puzzle pieces folks, the bottom octave is back!!   High voltage cap, fuse in the right place.. all good!   Really appreciate the assistance ?

jurb6006@gmail.com: Nov 28 10:07AM -0800 Been there - no good.

Foxs Mercantile <jdangus@att.net>: Nov 29 04:37AM -0600 > All my sources have let me down.   I thought you claimed to be able to work on anything without a schematic.   -- Jeff-1.0 wa6fwi http://www.foxsmercantile.com

jurb6006@gmail.com: Nov 29 02:57AM -0800 Not ANYTHING. Not with microprocessors especially. Actually I can still but I can only go so far.   It is still a hell of alot easier with a print than without.   Looks like I will have to prove it on this. It wil take a hell of alot more time. After all it is only a 200 WPC amp.

whit3rd <whit3rd@gmail.com>: Nov 28 03:08PM -0800 On Tuesday, November 28, 2017 at 12:48:01 AM UTC-8, GS wrote:   > Commercial isolation transformers get rid of common mode noise, and since > one leg of output is tied to ground, forms a new local neutral.   That's only true of SOME isolation transformers; the ones used for bench safety when working on live equipment do NOT make the neutral-ground connection.

tabbypurr@gmail.com: Nov 28 04:40PM -0800 On Tuesday, 28 November 2017 23:08:59 UTC, whit3rd wrote:   > That's only true of SOME isolation transformers; the ones used for > bench safety when working on live equipment do NOT make the > neutral-ground connection.   quite. And building site transformers earth the centre tap.   Re noise, there's the capacitance...     NT

gregz <zekor@comcast.net>: Nov 29 08:22AM > That's only true of SOME isolation transformers; the ones used for > bench safety when working on live equipment do NOT make the > neutral-ground connection.   All commercial isolation transformers must inform to code. All Tripplite isolators are grounded. It worries me some think it's all the same. Easy enough to examine or measure. Still can be a problem on equipment needing a ground configuration for the circuitry.   Greg

whit3rd <whit3rd@gmail.com>: Nov 29 01:24AM -0800 On Wednesday, November 29, 2017 at 12:22:46 AM UTC-8, GS wrote: > > neutral-ground connection.   > All commercial isolation transformers must inform to code. All Tripplite > isolators are grounded.   Commercial isolation transformers are leakage-tested, but the ground-neutral connection is not always present.   Tripplite also makes smart power strips that won't work if plugged into an isolation transformer that doesn't strap ground-to-neutral. So, they work with isolated (hospitals, sometimes) power only if you add a Tripplite isolator.   details are here, in the reviews section: <https://www.tripplite.com/for-patient-care-vicinity-ul-60601-1-medical-grade-ps-4-15a-hospital-grade-outlets-safety-covers-15-ft-cord~PS415HGULTRA/>

amdx <nojunk@knology.net>: Nov 28 12:36PM -0600 On 11/22/2017 5:43 PM, Jeff Liebermann wrote: > that it was Airplane Mode that was turned off, not Location Services. > They're quite different.   > Just ignore me. Maybe a turkey overdose will help.   Here's a video showing all the travel the phone owner did, his voice messages, many things. He shows how to stop it and if you want to stop all of it. > https://www.youtube.com/watch?v=4xgLhjTLn7Q   Interesting video, Mikek

tabbypurr@gmail.com: Nov 28 04:42PM -0800 On Tuesday, 28 November 2017 18:36:41 UTC, amdx wrote: > > https://www.youtube.com/watch?v=4xgLhjTLn7Q   > Interesting video, > Mikek   I've not seen it so far, but do you really think a large organisation co-opted into providing 'data' on its users would really turn that off just because you ask them? Do governments usually work that way?

Tim R <timothy42b@aol.com>: Nov 28 03:28PM -0800 On Monday, November 27, 2017 at 7:03:48 PM UTC-5, John-Del wrote: > > AC had a definite pulsation with each stroke of the piston.   > > Jon   > I would have thought they'd be using a nearly infinite mass flywheel to stave off power pulses.   We had a power plant on site with huge diesel generators, low speed (300 rpm). They did have huge flywheels. I never knew how clean the power was. They were built to power an entire block of buildings, but by this time they were peak shaving only, and have since been scrapped. Very impressive, the floor shook when they ran.

frank <frank@invalid.net>: Nov 28 09:53PM Hi all, I own an old Tektronix 4107 serial terminal, not really useful, but I like having working pieces of history. It used to work, but after some years of storage, it doesn't work anymore. It powers up, fan spins, some led on the PCBs lighten up, the caps-lock led on the keyboard flashes forever. The reset button doesn't seem to do anything, screen remains dark unless I press the self-test button and then it becomes white-ish with raster lines visible but not equally spaced it seems. I've been unable to find a service manual or even only a schematic on the net and I've stared at the thing wondering how one is supposed to start removing the electronic boards (there's a huge amount of electronics in this 1983 terminal). I would start probing the vital signals of the CPU and so on, but it's really hard without even knowing how the boards are supposed to be estracted from the case. Now, I'm sure someone out there has a service manual lying around, so I'd appreciate a copy of it (just kidding, but, why not asking)?   Any hint/help is welcome.   Best regards   Frank IZ8DWF

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