- New Wind Farms Cheaper Than Even Existing Coal Plants - 3 Updates
- Step Recovery Diodes - a blast from the past... - 4 Updates
| "pfjw@aol.com" <peterwieck33@gmail.com>: Jun 12 11:09AM -0700 > I believe that's "You can lead a horticulture, but you can't make her > think." I believe Ms. Parker did, in fact, use both versions. We lived in NYC in my youth, and my father was in publishing, editing and translating. Ms. Parker was an infrequent, but not rare, dinner visitor, and even to my young mind, a bit of a verbal dazzler. Peter Wieck Melrose Park, PA |
| Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Jun 12 10:08PM -0400 > translating. Ms. Parker was an infrequent, but not rare, dinner > visitor, and even to my young mind, a bit of a verbal dazzler. > Peter Wieck Melrose Park, PA Fun! Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com |
| cornelius@eisner.decus.org (George Cornelius): Jun 13 12:32AM -0400 > https://en.wind-turbine-models.com/turbines/548-gamesa-g87 > You can lead a whore to Vassar, but you can't make her think. (Dorothy Parker) > You would be that whore. If you don't have an argument, resort to ad hominems. |
| Jeff Liebermann <jeffl@cruzio.com>: Jun 12 09:05AM -0700 On Tue, 11 Jun 2019 17:17:41 -0700, John Robertson <spam@flippers.com> wrote: >I use an ESR meter for things besides caps, this chatty one that goes >down to 0.001 ohms is handy for finding shorts between traces, and other >jobs, not just testing caps. Maximum is around 90 ohms. Yet another idea. Most supercaps have an extremely low ESR. For example, Murata claims 40 to 300 milliohms (measured at 1KHz). <https://www.murata.com/~/media/webrenewal/products/capacitor/edlc/techguide/electrical/c2m1cxs-053.ashx> Ask Bob Parker if he can build something to test those. I have no clue how to build probes with that low a contact resistance. Fat copper wires with silver contacts? I don't have an immediate application or market, but I keep running into supercaps with no way to test them for anything more than capacitance. -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
| three_jeeps <jjhudak@gmail.com>: Jun 12 10:20AM -0700 On Tuesday, June 11, 2019 at 9:03:43 PM UTC-4, Jeff Liebermann wrote: > 150 Felker St #D http://www.LearnByDestroying.com > Santa Cruz CA 95060 http://802.11junk.com > Skype: JeffLiebermann AE6KS 831-336-2558 I don't know if anything is wrong with this thing. I have degrees in Electrical Computer engineering and focus on CPU architecture and hardware design, and control theory. As an EE, yea, designed/built lots of digital and analog 'stuff' but never dabbled with microwave 'stuff' and the SRD was something I've never come across till I was looking at the schematics and tech manual for this device. Personally, I have no use for it and lots of other things to devote my time to, but I thought I'd ask some questions about these devices on the off chance I'd do something with it. I did go down the route of looking up the tek cross to commercial parts and found nothing, so I am even more inclined not to deal with this thing. Given that is vintage 1965 and hasn't been turned on in 30+ years, chances are components are non-functional. Thanks for all the insights. J |
| Arie de Muynck <no.spam@no.spam.org>: Jun 12 09:50PM +0200 On 2019-06-12 18:05, Jeff Liebermann wrote: > copper wires with silver contacts? I don't have an immediate > application or market, but I keep running into supercaps with no way > to test them for anything more than capacitance. One would use Kelvin connections - probe resistance is not a major issue then. https://en.wikipedia.org/wiki/Four-terminal_sensing Arie |
| John Robertson <spam@flippers.com>: Jun 12 06:26PM -0700 On 2019/06/12 12:50 p.m., Arie de Muynck wrote: > then. > https://en.wikipedia.org/wiki/Four-terminal_sensing > Arie I forgot to mention that Bob uses Kelvin connections to his probes on the Talking ESR meter prototype. John :-#)# |
| 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 - 7 updates in 2 topics"
Post a Comment