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@@

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.