If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#31
|
|||
|
|||
OT Philco 41-285
On 01/02/2012 06:54 PM, Lostgallifreyan wrote:
wrote in : I don't know what they use now, but when I was there they used "flooded" batteries (that's simply liquid h2so4) There were two backup control systems and each one had two sets of backup batteries and we were installing a backup for the backup! (and they still had more) Yes, I felt they put a real good emphasis on safety! Impressive. And risky as well. A nuclear power plant with flooded cells that need a watch on outgassing, and plenty of acid... The AGM's basically use a 'starved' electrolyte in a mat of glass fibres, a highly efficient recombination of gasses with seals that only open if things go wrong, can operate in any orientation, etc, so I guess they'd use those now. But it's still lead acid, and it's a great technology. Until Li-ion came, I think it had no challengers. I'm waiting for sodium batteries. I think those might be like the (in)famous Terminator 3 power cell that got thrown out of that moving car in the movie... Even if nowhere near that bad, I think it might be a long wait while safety is developed for them. That was quite a long time ago and the trend now days is to used "sealed" batteries..(the non-leaking type). I am converting over my last "flooded" stationary battery installation this year... |
#32
|
|||
|
|||
OT Philco 41-285
philo wrote in :
That was quite a long time ago and the trend now days is to used "sealed" batteries..(the non-leaking type). I am converting over my last "flooded" stationary battery installation this year... That might mean more common sealed types. Hopefully they will be cheaper and easier to get next time I need some. Enersys SBS170A is what I have now. |
#33
|
|||
|
|||
OT Philco 41-285
philo wrote in :
Since Iran was able to "capture" a drone... then it's got technology we no longer want Well this is what happens when we let genies out of bottles... But Iran is smart. They're in the genie-bottling business too. In the long run I doubt they'll be a threat. They just want to make themselves indispensible. BTW: here is the bottom side of the radio http://www.facebook.com/photo.php?fb...a.162937037067 007.41454.100000521360508&type=1&ref=nf and here is the topside http://www.facebook.com/photo.php?fb...a.162937037067 007.41454.100000521360508&type=1&ref=nf Those are the canned coils I meant. Exactly like those. I last saw them like that in the mid 70's and I'n sure they were old then too. Interesting dial, over here the names were like Hilversum, Luxembourg, Prague and such. Yours seem to deal with even greater distances. |
#34
|
|||
|
|||
OT Philco 41-285
philo wrote in :
All I can say is that the day I caused the battery to blow up I was wearing the proper safety equipment or things might have been a lot worse This is why I will only use the AGM types here. If I had to sit here wearing kevlar and a steel helmet, I can think of more likely occupations for it. One upside of being so close to them is that in the unlikely event somethign went wrong, I'd hear it before it got bad. I heard the occasional crackign of the old ones I got rid of. At the time I never realised what the source of the sound was (I put it down to slow drying and cracking of plaster on plasterboard walls until I saw the damage a month later), but if I heard it now I know exactly where I'd look first. When I first put these new ones in, I deliberately tried to catch hydrogen in upturned tins on the edge of the table covering them, when the sun was strongest on the panels, just to see if any was produced. I'd take them out into the yard, after capping them, and try to ignite the gas. I never found anything that would ignite. |
#35
|
|||
|
|||
OT Philco 41-285
"Lostgallifreyan" wrote in message . .. philo wrote in : Since Iran was able to "capture" a drone... then it's got technology we no longer want Those are the canned coils I meant. Exactly like those. I last saw them like that in the mid 70's and I'n sure they were old then too. Interesting dial, over here the names were like Hilversum, Luxembourg, Prague and such. Yours seem to deal with even greater distances. I'll have to connect a good antenna and see what I can get! |
#36
|
|||
|
|||
OT Philco 41-285
"Lostgallifreyan" wrote in message .. . philo wrote in : That was quite a long time ago and the trend now days is to used "sealed" batteries..(the non-leaking type). I am converting over my last "flooded" stationary battery installation this year... That might mean more common sealed types. Hopefully they will be cheaper and easier to get next time I need some. Enersys SBS170A is what I have now. If you are using Enersys batteries then you are the one who signs my paycheck SIR! |
#37
|
|||
|
|||
OT Philco 41-285
"philo" wrote in :
If you are using Enersys batteries then you are the one who signs my paycheck SIR! Awesome. But it works the other way round. If people didn't make these amazing batteries, where would I be? |
#38
|
|||
|
|||
OT Philco 41-285
"philo" wrote in :
"Lostgallifreyan" wrote in message . .. philo wrote in : Since Iran was able to "capture" a drone... then it's got technology we no longer want Those are the canned coils I meant. Exactly like those. I last saw them like that in the mid 70's and I'n sure they were old then too. Interesting dial, over here the names were like Hilversum, Luxembourg, Prague and such. Yours seem to deal with even greater distances. I'll have to connect a good antenna and see what I can get! Go for long and low if you can. I have to do with 9 metres straight upwards surrounded by 4 floor buildings. But it's better than nothing. I swear that 20 years ago I could listen to a few SW stations on a small consumer-type radio with a 3 foot telescpic whip while inside in the basement, but not now. Way too much noise to hear anything but mush that way now. Got to sleep or my brains will be mush. And I'm expecting delivery of a few 10K log pots I have to sign for.. |
#39
|
|||
|
|||
OT Philco 41-285
"Lostgallifreyan" wrote in message . .. "philo" wrote in : If you are using Enersys batteries then you are the one who signs my paycheck SIR! Awesome. But it works the other way round. If people didn't make these amazing batteries, where would I be? LOL cu later I'm pulling the big switch! |
Thread Tools | |
Display Modes | |
|
|