|
030904 1736 - Lizard Blizzard wrote:
Back then, the radio and TV sets were still using 5U4 TOOBS for rectifiers, whereas the electrical world already had equipment with SCRs up to the size of hockey pucks that could handle up to 1200 amps Imagine the size of the heatsink for that... |
indago wrote:
030904 1736 - Lizard Blizzard wrote: Back then, the radio and TV sets were still using 5U4 TOOBS for rectifiers, whereas the electrical world already had equipment with SCRs up to the size of hockey pucks that could handle up to 1200 amps Imagine the size of the heatsink for that... The heatsink is "live" for that style rectifier. It has to be tightened onto the rectifier (sandwitched) using several bolts. There's acually a compression rating - if a certain static force is not present during operation, it will explode... :) |
indago wrote:
030904 1736 - Lizard Blizzard wrote: Back then, the radio and TV sets were still using 5U4 TOOBS for rectifiers, whereas the electrical world already had equipment with SCRs up to the size of hockey pucks that could handle up to 1200 amps Imagine the size of the heatsink for that... The heatsink is "live" for that style rectifier. It has to be tightened onto the rectifier (sandwitched) using several bolts. There's acually a compression rating - if a certain static force is not present during operation, it will explode... :) |
In article ,
mentioned... 030904 1736 - Lizard Blizzard wrote: Back then, the radio and TV sets were still using 5U4 TOOBS for rectifiers, whereas the electrical world already had equipment with SCRs up to the size of hockey pucks that could handle up to 1200 amps Imagine the size of the heatsink for that... Things with big SCRs, like motor controllers, don't have a heatsink as you would think of it. They use a square tube with fins pointing into the cavity, and fans on the end. -- @@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@ h@e@r@e@@ ###Got a Question about ELECTRONICS? Check HERE First:### http://users.pandora.be/educypedia/e...s/databank.htm My email address is whitelisted. *All* email sent to it goes directly to the trash unless you add NOSPAM in the Subject: line with other stuff. alondra101 at hotmail.com Don't be ripped off by the big book dealers. Go to the URL that will give you a choice and save you money(up to half). http://www.everybookstore.com You'll be glad you did! Just when you thought you had all this figured out, the gov't changed it: http://physics.nist.gov/cuu/Units/binary.html @@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@ u@e@n@t@@ |
Watson A.Name - Watt Sun wrote:
Things with big SCRs, like motor controllers, don't have a heatsink as you would think of it. They use a square tube with fins pointing into the cavity, and fans on the end. And some of them use water-cooled aluminum "cold plates", rather than fans. Bob Weiss N2IXK |
Watson A.Name - Watt Sun wrote:
Things with big SCRs, like motor controllers, don't have a heatsink as you would think of it. They use a square tube with fins pointing into the cavity, and fans on the end. And some of them use water-cooled aluminum "cold plates", rather than fans. Bob Weiss N2IXK |
On Thu, 18 Sep 2003 01:28:43 GMT, Fred Nachbaur wrote:
Yup. The one I like also is "Trust in God, but tie up your camel." Cheers, Fred My joke guy sent me this one today ... It sounds too weird to be true ... Since America is typically represented by an eagle, Saddam should have read up on his Muslim passages... The following verse is from the Quran, (the Islamic Bible) Quran (9:11) -- For it is written that a son of Arabia would awaken a fearsome Eagle. The wrath of the Eagle would be felt throughout the lands of Allah and lo, while some of the people trembled in despair still more rejoiced; for the wrath of the Eagle cleansed the lands of Allah; and there was peace. ( Note the verse number) |
On Thu, 18 Sep 2003 01:28:43 GMT, Fred Nachbaur wrote:
Yup. The one I like also is "Trust in God, but tie up your camel." Cheers, Fred My joke guy sent me this one today ... It sounds too weird to be true ... Since America is typically represented by an eagle, Saddam should have read up on his Muslim passages... The following verse is from the Quran, (the Islamic Bible) Quran (9:11) -- For it is written that a son of Arabia would awaken a fearsome Eagle. The wrath of the Eagle would be felt throughout the lands of Allah and lo, while some of the people trembled in despair still more rejoiced; for the wrath of the Eagle cleansed the lands of Allah; and there was peace. ( Note the verse number) |
ånønÿmøu§ wrote:
Since America is typically represented by an eagle, Saddam should have read up on his Muslim passages... The following verse is from the Quran, (the Islamic Bible) Quran (9:11) -- For it is written that a son of Arabia would awaken a fearsome Eagle. snip Total BS. The actual text is a bit more interesting... [9.9] They have taken a small price for the communications of Allah, so they turn away from His way; surely evil is it that they do. [9.10] They do not pay regard to ties of relationship nor those of covenant in the case of a believer; and these are they who go beyond the limits. [9.11] But if they repent and keep up prayer and pay the poor-rate, they are your brethren in faith; and We make the communications clear for a people who know. [9.12] And if they break their oaths after their agreement and (openly) revile your religion, then fight the leaders of unbelief-- surely their oaths are nothing-- so that they may desist. [9.13] What! will you not fight a people who broke their oaths and aimed at the expulsion of the Apostle, and they attacked you first; do you fear them? But Allah is most deserving that you should fear Him, if you are believers. [9.14] Fight them, Allah will punish them by your hands and bring them to disgrace, and assist you against them and heal the hearts of a believing people. |
| All times are GMT +1. The time now is 06:46 PM. |
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com