- Why do lithium batteries explode? - 6 Updates
- Tread types and routing in Philips B5X14A vintage planar radio - 2 Updates
| amdx <nojunk@knology.net>: Sep 05 12:39PM -0500 I think it's Lithium just being Lithium. Mikek |
| "p-0''0-h the cat (coder)" <super.pooh@fluffyunderbelly.invalid>: Sep 05 06:46PM +0100 > I think it's Lithium just being Lithium. > Mikek Ha Ha. Sent from my iFurryUnderbelly. -- p-0.0-h the cat Internet Terrorist, Mass sock puppeteer, Agent provocateur, Gutter rat, Devil incarnate, Linux user#666, BaStarD hacker, Resident evil, Monkey Boy, Certifiable criminal, Spineless cowardly scum, textbook Psychopath, the SCOURGE, l33t p00h d3 tr0ll, p00h == lam3r, p00h == tr0ll, troll infâme, the OVERCAT [The BEARPAIR are dead, and we are its murderers], lowlife troll, shyster [pending approval by STATE_TERROR], cripple, sociopath, kook, smug prick, smartarse, arsehole, moron, idiot, imbecile, snittish scumbag, liar, total ******* retard, shill, pooh-seur, scouringerer, jumped up chav, lycanthropic schizotypal lesbian, the most complete ignoid, joker, and furball. NewsGroups Numbrer One Terrorist Honorary SHYSTER and FRAUD awarded for services to Haberdashery. By Appointment to God Frank-Lin. Signature integrity check md5 Checksum: be0b2a8c486d83ce7db9a459b26c4896 I mark any message from »Q« the troll as stinky |
| John Robertson <spam@flippers.com>: Sep 05 01:51PM -0700 On 09/05/2016 10:39 AM, amdx wrote: > I think it's Lithium just being Lithium. > Mikek " lithium is highly reactive and flammable." John :-#)# -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
| amdx <nojunk@knology.net>: Sep 06 10:03AM -0500 On 9/5/2016 3:51 PM, John Robertson wrote: >> Mikek > " lithium is highly reactive and flammable." > John :-#)# That was my point. Mikek |
| "Mr. Man-wai Chang" <toylet.toylet@gmail.com>: Sep 06 11:58PM +0800 On 6/09/16 23:03, amdx wrote: > That was my point. Most mortals don't know what lithium is and how it behaves. Mind to summarize? :) -- @~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!! / v \ Simplicity is Beauty! /( _ )\ May the Force and farces be with you! ^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa |
| Poutnik <poutnik4nntp@gmail.com>: Sep 06 06:09PM +0200 On 09/06/2016 05:03 PM, amdx wrote: >> " lithium is highly reactive and flammable." >> John :-#)# > That was my point. With a note that Li-ion/pol cell chemistry ( one of many cell chemistries based on lithium ) at normal circumstances does not contain free metallic lithium. The neutral lithium atoms are intercalated within the honeycomb plates of graphite electrode. Only in case the cell is overcharged, the metallic lithium eventually starts to deposit on the anode graphite surface. Reaction rates of undesired exothermic side reactions increases, involving namely with metal oxides of cathode eventually the LiPF6 electrolytes and organic carbonates R-O-CO-O-R'. The carbonates are flameable liquid and combined with the lithium cam make a hell from such damaged battery. a notebook battery intentionally brought to critical damage point can cause up to 2 m high violet and violent flame. |
| John Robertson <spam@flippers.com>: Sep 05 01:55PM -0700 On 09/05/2016 12:52 AM, Brasto wrote: > The steel wire type forms one half and the "cotton" tread closes the loop, AM and FM circuit are using the same type of different wires. > The steel part is on vintage radio's subject to corrosion and breaks easily, I found it no problem to replace the steel by a "cotton" type. > Question: what is the reason Philips engineers have chosen for this two type of wire concept? Most likely to avoid stretch - so the frequency indicator stays true. There was (is?) a fine braided highly flexible and strong wire that was used in those days for the same reason. I have an old roll of it in my shop that is used on jukeboxes for moving various things in the mechanism... John :-##) -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
| "pfjw@aol.com" <pfjw@aol.com>: Sep 06 05:38AM -0700 On Monday, September 5, 2016 at 3:52:08 AM UTC-4, Brasto wrote: > The steel wire type forms one half and the "cotton" tread closes the loop, AM and FM circuit are using the same type of different wires. > The steel part is on vintage radio's subject to corrosion and breaks easily, I found it no problem to replace the steel by a "cotton" type. > Question: what is the reason Philips engineers have chosen for this two type of wire concept? There is a lot of history for tuner-cords, AKA Dial Cord, and as many types as there were radios. The wire-based dial cord - as already noted - was used to prevent stretching, until (at least in the US) spring-loaded systems were developed to absorb the stretch equally. For the most part, modern replacement materials are corrosion resistant and will easily outlast the radio. Other options include wire-core "Rigging Twine" used by scale modelers: This is a cloth-over-wire material that is useful for low-use systems as it looks "original" and takes knots very well. There is also a braided material used by scale-sailboat racers that is extremely strong, flexible, corrosion-resistant and able to take repeated stress. Probably your best bet if you intend to use this radio a good deal. Not cheap, but you don't need much either. Plain ordinary braided Dacron fishing line is also useful as it gets over its 'stretch' in the first use, and will remain stable after that. It is very strong and comes in many weights and colors. And is very cheap. I would use this in lieu of the wire after pre-stretching it first. Good luck with it. Peter Wieck Melrose Park, PA |
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