Apple IIgs 200w Power Supply

[Henry]

It's here! Finally a modern power supply replacement for your Apple IIgs.

Come visit the Website Store (www.GSE-Reactive.com) for all the details.

Units will start to ship February 1st. II/+/e power supply will also be
available on the 3rd.

Place an order and reserve yours today!


Henry S. Courbis
www.GSE-Reactive.com

[sicklittlemonkey]

Great work!
And thanks for thinking of non-US-users on this one!

Can we expect a //c power supply at some stage?
(A clip on LCD screen would be nice too. A real laptop! ;-)

Cheers,
Nick.

[bradw]

not that i'm in any hurry to get one..but curious..if/when the //e version
comes out...could i get it 'tweaked' to have a //e modular plug on it at
200w i have (2) apple //e gs upgrade setups i use...and they use the
standard //e power supply footprint..but also use the //e power plug as
upgrades....no biggie just wondering...looks like a good product.....(boy am
i in a tiny niche....gs upgrades jeez)


brad
former sysop lost gonzo bbs

Post by Henry
It's here! Finally a modern power supply replacement for your Apple IIgs.
Come visit the Website Store (www.GSE-Reactive.com) for all the details.
Units will start to ship February 1st. II/+/e power supply will also be
available on the 3rd.
Place an order and reserve yours today!
Henry S. Courbis
www.GSE-Reactive.com

[Michael J. Mahon]

Post by bradw
not that i'm in any hurry to get one..but curious..if/when the //e version
comes out...could i get it 'tweaked' to have a //e modular plug on it at
200w i have (2) apple //e gs upgrade setups i use...and they use the
standard //e power supply footprint..but also use the //e power plug as
upgrades....no biggie just wondering...looks like a good product.....(boy am
i in a tiny niche....gs upgrades jeez)

I've wondered why there wasn't a market for short cables to convert:

IIgs PS --> ][, //e connector
PC ATX PS --> IIgs connector
PC ATX PS --> //e connector

The cost would be nominal, the postage minimal, and the results optimal!
;-)

-michael

Music synthesis for 8-bit Apple II's!
Home page: http://members.aol.com/MJMahon/

"The wastebasket is our most important design
tool--and it is seriously underused."

[Bryan Parkoff]

Post by Henry
It's here! Finally a modern power supply replacement for your Apple IIgs.
Come visit the Website Store (www.GSE-Reactive.com) for all the details.
Units will start to ship February 1st. II/+/e power supply will also be
available on the 3rd.
Place an order and reserve yours today!
Henry S. Courbis
www.GSE-Reactive.com

Henry,

How much watt do original Apple IIgs' power supply have? Is new 200
watt power supply really heavy power supply? What is the difference between
200 watt power supply and Vulcan power supply? Which is better to give more
power for all 8 slots on Apple IIgs' motherboard because I use all 6 slots
plus memory expansion card.

Bryan Parkoff

[Henry]

Hello again everyone.

sicklittlemoney: No problem! More people who can use it the better I
figured.

bradw: Sure thing. I'll set it up any special way you want. Just email me
when you order it and I'll make sure it gets done. I could also have both
connectors on it. Also, let me know if there is some kind of a market for
the converter cables and maybe I'll ad a few to the Site.

Michael: The only issue with ATX to Apple converter cables would be that
the user would have to make sure the ATX power supply has a -5v supply line.
Most newer ATX supply's have done away with it. That's one of the reasons
it was so hard to find a power supply that would work, the other reason is
the
form factor. The supply I'm using is actually a U1 rack-mount supply, but
in a "special" footprint.

Bryan: Let's touch on some basic math, just to make sure I'm doing things
right here. I'm sure someone will jump in if I make a mistake along the
way.

The "watt", a unit of power, is calculated by multiplying the Amps by the
Volts. So "watt = amp * volt".

A IIe power supply can produce +5v at 2.5a = 12.5w. And +12v at 1.5a = 18w.
A total of roughly 30.5w. I believe the peak wattage to be 35w.

A IIgs power supply can produce +5v at 4a = 20w. And +12v at 2.5a = 30w. A
total of roughly 50w. I believe the peak wattage to be 60w.

The GSE-Reactive.com power supply can produce +5v at 18.8a = 94w. And +12v
at 7.0a = 84w. A total of roughly 178w. Peek of 200w.

You should also note that there are two "negative" supply lines on each
power supply not listed here so the "real" wattage values are really a bit
higher, but ONLY a little bit like 1 to 3 watts.

Okay, math lesson over. ;) I'm not too sure what you mean by "new 200 watt
power supply really heavy power supply?". If you mean the weight, it
actually weights a little less then the original supplies since it's a
"switching" supply and not "linear". A switching supply doesn't need a big
heavy transformer like the older supply's do. They convert the AC from 60
cycles to a much higher frequency which is much more efficient way to
convert power.

I'm not too sure about the Vulcan supply's, sorry.

As far a which supply would be "better" I would say the newer
GSE-Reactive.com power supply. Besides there being more power available,
the power will be "cleaner" and better regulated during times when there are
power issues like brown outs. Did I mention in built in fans?

Hope this helps.


Henry S. Courbis
www.GSE-Reactive.com

[bradw]

quote
A IIe power supply can produce +5v at 2.5a = 12.5w. And +12v at 1.5a = 18w.
A total of roughly 30.5w. I believe the peak wattage to be


35w.


A IIgs power supply can produce +5v at 4a = 20w. And +12v at 2.5a = 30w. A
total of roughly 50w. I believe the peak wattage to be

60w.

The GSE-Reactive.com power supply can produce +5v at 18.8a = 94w. And +12v
at 7.0a = 84w. A total of roughly 178w.

Peek of 200w.
end quote

zowie....zipppy...


hmmm...i just looked inside my 2 apple //e upgrades power supplies..i used
to run fv/4.0xev and tpro 4.2f rpg bbs on 24/7 when gonzo was up.....i HAVE
(and still have as spares i guess) but never used some buggie power
supplies...but basically looking at the 2 gs upgrades i have both same
setup...ram card might be different... i see that i have regular old ap2e
power supplies...on the fv/metal machine..it is located outside the
case...for heat reasons (ie take out of case..put cable to mother board thru
hole where m/b used to be....to mother board...i know ...dumb but seems to
work ok...)

anyway...on that machine i had a 14.mhz (stable) twgs with 32k ram upgrade,
sequential 4meg ram card (the last one made uses newer ram chips stacked
like dominos), ramfast rev D 256 card (yeah never got around to upgrading
ram on that)

anyway....worked just fine from 1995 or so till system went down in
2002....with the same power supply...i'm pretty sure....so ....maybe heat is
the big issue on this ..and this setup was up 24/7 during that time

anyway...prob not enough cards in it to matter just thought it was
interesting...because of the //gs upgrade angle and having to use your
regular //e power supply

anyway thanks for the info..if they never go out..i guess i'm not much in
the market for one..but if i do...nice to know it is available with the pc
power plugs as well...(i do have a vulcan controller around here someplace ?
but the proper ide hd i think is a pain to find..too many toys..not enough
money)....i want someone on this newsgroup... to win the lottery and setup a
foundation for an ap2 museum....could be worse i guess....i saw a guy on
t.v. whose bsmt/garage etc were filled with 1930's to 1960's outboard
motors....and i think i have space issues...



brad
former sysop lost gonzo bbs

[Roger Johnstone]

Post by Henry
Okay, math lesson over. ;) I'm not too sure what you mean by "new 200
watt power supply really heavy power supply?". If you mean the
weight, it actually weights a little less then the original supplies
since it's a "switching" supply and not "linear". A switching supply
doesn't need a big heavy transformer like the older supply's do.
They convert the AC from 60 cycles to a much higher frequency which
is much more efficient way to convert power.

The Apple II/II+/IIe/IIGS all use switching power supplies, not linear.
Indeed the use of a switching suply was one of the big advances of the
original Apple II. I've seen the power supplies used in some S-100
computers from the late 1970s: huge transformers and big power
transistors mounted in large metal boxes!

Modern switching supplies are a lot more space-efficient though, mainly
because they operate at higher frequencies (which allows for smaller
transformers) and they use much more efficient semiconductors.

[Henry]

Are they switchers? I didn't look at the transistors or the transformer too
closely. Must be some really old switching technology because as far as I
know you need two transformers to make a switcher and the Apple power
supply's only had one. I just assumed they were linear.

Thanks for the correction. I'll have to look further in to their design one
of these days.


Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!

Post by Roger Johnstone

Post by Henry
Okay, math lesson over. ;) I'm not too sure what you mean by "new 200
watt power supply really heavy power supply?". If you mean the
weight, it actually weights a little less then the original supplies
since it's a "switching" supply and not "linear". A switching supply
doesn't need a big heavy transformer like the older supply's do.
They convert the AC from 60 cycles to a much higher frequency which
is much more efficient way to convert power.

The Apple II/II+/IIe/IIGS all use switching power supplies, not linear.
Indeed the use of a switching suply was one of the big advances of the
original Apple II. I've seen the power supplies used in some S-100
computers from the late 1970s: huge transformers and big power
transistors mounted in large metal boxes!
Modern switching supplies are a lot more space-efficient though, mainly
because they operate at higher frequencies (which allows for smaller
transformers) and they use much more efficient semiconductors.
--
Roger Johnstone, Invercargill, New Zealand
http://roger.geek.nz/
________________________________________________________________________
No Silicon Heaven? Preposterous! Where would all the calculators go?
Kryten, from the Red Dwarf episode "The Last Day"

[Michael J. Mahon]

Post by Henry
Are they switchers? I didn't look at the transistors or the transformer too
closely. Must be some really old switching technology because as far as I
know you need two transformers to make a switcher and the Apple power
supply's only had one. I just assumed they were linear.

A switching power supply typically uses only one transformer,
which operates at the switching frequency.

-michael

Music synthesis for 8-bit Apple II's!
Home page: http://members.aol.com/MJMahon/

"The wastebasket is our most important design
tool--and it is seriously underused."

[Luke Forat]

Henry,

the "switching" terminology comes from the fact that you don't keep the
transistor ON all the time with a variable Base BIAS such as in a linear
regulator but your switch it off and on using Pulse Width Modulation (this
keeps the transistor much cooler and is more efficient). Varying it's duty
cycle regulates the output. Typically, an optocoupler or another small
transformer is used for the feedback to regulate it (the HV part is isolated
from the low voltage output for safety). The whole power supply is lighter
because your transformer core is much smaller due to the higher operating
frequency (1-2Khz or even more for modern PSUs).

If you place your ear near your Apple when you turn it off (or on, but
it is more recognizable when switching off), you will hear a brief "squeak":
it is the switching PSU (my 1980 Apple//e and all the older Apple IIs we had
in school manifested this). The squeak is the brief "ramp up" (or down if
you are switching it off) and is emitted by the transformer's core, which
vibrates reacting to the lower frequency while it "ramps" up.

Luke

Post by Henry
Are they switchers? I didn't look at the transistors or the transformer too
closely. Must be some really old switching technology because as far as I
know you need two transformers to make a switcher and the Apple power
supply's only had one. I just assumed they were linear.
Thanks for the correction. I'll have to look further in to their design one
of these days.
Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!

[Michael J. Mahon]

Henry wrote:

<snip>

Post by Henry
Michael: The only issue with ATX to Apple converter cables would be that
the user would have to make sure the ATX power supply has a -5v supply line.
Most newer ATX supply's have done away with it. That's one of the reasons
it was so hard to find a power supply that would work, the other reason is the
form factor. The supply I'm using is actually a U1 rack-mount supply, but
in a "special" footprint.

I've noticed the demise of -5v, too--but there are still lots of older,
small form factor ATX supplies. For that matter, there are lots of even
older AT supplies, and they all have -5v (but are a little harder to get
in a small form factor). All of these would be great *external* power
supplies, ala Buggy--all they need for the average, non-soldering person
to make them useful with an Apple II is an adapter cable.

<snip>

Post by Henry
Okay, math lesson over. ;) I'm not too sure what you mean by "new 200 watt
power supply really heavy power supply?". If you mean the weight, it
actually weights a little less then the original supplies since it's a
"switching" supply and not "linear". A switching supply doesn't need a big
heavy transformer like the older supply's do. They convert the AC from 60
cycles to a much higher frequency which is much more efficient way to
convert power.

Not only is the original Apple II supply also a switching supply, it
was the *first* switching power supply built into a personal computer!

Technology has simply improved the power density in newer supplies.

Post by Henry
I'm not too sure about the Vulcan supply's, sorry.

Also switching, and "heavy duty" (about 5v @ 5A, e.g.), and half the
volume of the original Apple power supply (an earlier beneficiary of
improved power density), so that a 3.5" drive could fit in front of it.

-michael

Music synthesis for 8-bit Apple II's!
Home page: http://members.aol.com/MJMahon/

"The wastebasket is our most important design
tool--and it is seriously underused."

[PZ]

Post by Michael J. Mahon
volume of the original Apple power supply (an earlier beneficiary of
improved power density), so that a 3.5" drive could fit in front of it.

Or two 3.5's if you're good with a dremmel! muahahaha....

- Paul

[Michael J. Mahon]

Post by PZ

Post by Michael J. Mahon
volume of the original Apple power supply (an earlier beneficiary of
improved power density), so that a 3.5" drive could fit in front of it.

Or two 3.5's if you're good with a dremmel! muahahaha....

Way to go! ;-)

-michael

Music synthesis for 8-bit Apple II's!
Home page: http://members.aol.com/MJMahon/

"The wastebasket is our most important design
tool--and it is seriously underused."

[PZ]

Well, only one is a hard drive, the other is Superdrive Mechanism. :-)
Funny thing is I built this rig before the Mark Twain came out of the
closet.

- Paul

[Sean Fahey]

Post by PZ
Well, only one is a hard drive, the other is Superdrive Mechanism. :-)
Funny thing is I built this rig before the Mark Twain came out of the
closet.

Mark Twain was gay? <jk>

[PZ]

Yup. Thats why Apple killed the project. Homophobia - who would of
thunk it! :-)

- Paul

[Sean Fahey]

Post by PZ
Yup. Thats why Apple killed the project. Homophobia - who would of
thunk it! :-)

Maybe thats the reason the rainbow logo was discontinued... it's a
conspiracy.

[PZ]

I just spent 2 minutes cracking up, Sean..... Nice one!

-Paul

[PZ]

Henry,

Is your new supply capable of running without fans as long as the
wattage limit isn't pushed? Looking at building up a GS to run in the
classic stealth mode with a CFFA, no hard drive whine, no fan noise,
etc. - just good ol' Apple II silence.... and the RAT-TAT-TAT of a Disk
II. Although in that case I probably don't need a 200w supply, ehy?

- Paul

[Henry]

Hey Paul.

Sure, although it will run a little hotter then the Apple standard. Sounds
like with just the CFFA you really don't need the upgraded power supply.


Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!

Post by Bryan Parkoff
Henry,
Is your new supply capable of running without fans as long as the
wattage limit isn't pushed? Looking at building up a GS to run in the
classic stealth mode with a CFFA, no hard drive whine, no fan noise,
etc. - just good ol' Apple II silence.... and the RAT-TAT-TAT of a Disk
II. Although in that case I probably don't need a 200w supply, ehy?
- Paul

[julian814]

The only thing I want to know is will the unit fit in a GS case? I like
to keep my innards on the inside, if you know what I mean.

Ralph

[Henry]

Hello Ralph.

Yep, fits inside the case just as a "normal" IIgs power supply does. You
can see a pic on the on-line Store:
http://www.gse-reactive.com/cre/product_info.php?Power_Supply_-_IIgs&products_id=55


Luke:

Thanks for the info!


Sean/PZ:

I never knew my Apple might be gay or may have been discriminated against!
I just thought it was being really friendly and Apple killed it for the Mac.
Wait a minute! Mac? A more "butch" name? Humm... you might just be on to
something here. ;) You two are killing me. I'll never read Huck Finn the
same way now thanks to you two. =D


Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!

Post by julian814
The only thing I want to know is will the unit fit in a GS case? I like
to keep my innards on the inside, if you know what I mean.
Ralph

[Scott Alfter]

Post by Henry
Yep, fits inside the case just as a "normal" IIgs power supply does. You
http://www.gse-reactive.com/cre/product_info.php?Power_Supply_-_IIgs&products_id=55

I tried that, but there were no images at first. Digging around in the page
source revealed that you're using JavaScript to load the images, which is a
Bad Idea.

_/_
/ v \ Scott Alfter (remove the obvious to send mail)
(IIGS( http://alfter.us/ Top-posting!
\_^_/ rm -rf /bin/laden >What's the most annoying thing on Usenet?

[Henry]

Hey Scott.

Yeah, we're working a few more of the bugs out right now. The next week or
two will be yet another incarnation of the Website's Store.

Hope everyone will stop in and check it out. Some new items, a new way the
items are listed and now a way to list by computer type. Some neat stuff.


Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!

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Hash: SHA1

Post by Henry
Yep, fits inside the case just as a "normal" IIgs power supply does. You
http://www.gse-reactive.com/cre/product_info.php?Power_Supply_-_IIgs&products_id=55

I tried that, but there were no images at first. Digging around in the page
source revealed that you're using JavaScript to load the images, which is a
Bad Idea.
_/_
/ v \ Scott Alfter (remove the obvious to send mail)
(IIGS( http://alfter.us/ Top-posting!
\_^_/ rm -rf /bin/laden >What's the most annoying thing on Usenet?
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iD8DBQFD3+mMVgTKos01OwkRArTDAKDMKCrEBC0rBJX11e+aW7TSRfFwQwCfTalj
aXPdbrtHqXcEWTXwehq+d5U=
=WIh8
-----END PGP SIGNATURE-----

[bradw]

can't remember if i asked this or not....is there gonna be a //e version of
this beast....(sorry the minds starting to go..i think i read this
someplace)

in that i have //e upgrades to the gs in //e cases...that 'might' motivate
me..assuming my $$$$ situation ever gets back to normal

ideally ..such a beast would have the nice littte pc power adaptors and a
//gs regular power plug as well as a //e power plug..thus if my //gs upgrade
motherboard (or i wanted to make a stealth gs) ever went poof ..i could put
a standard gs motherboard in the beast and just worry about the soldering of
the internal keyboard adaptor on a rom 1

and of coure there is the matter of even thou it is a //e case..the
motherboard is a //gs ...so power improvement there..prob would not hurt
either

just wondering...prob the power supply is too big for that leap and prob
200w in a //e case is just ..i don't know.. just ......obscene?

i mean how far is this 'mod'ing on here gonna go..do i have to get a demel
tool and start cutting radioactive or startrek designs thru and on the side
of my //e case and get that cool lighting tubing all the kids use on there
'cpu overcloced' pc boxes...to shine thru...maybe a nice green shade that
blinks?

...so that is what the sound card is for and the 'talk' of the 16mhz
twgs's.......whats next ..i hear liguid cooling is the in thing with pc
mod'ers....is garberstreet gonna corner the 'cool' mod'ed //e look....

(old fart wanders away.."yung puk kids..in my day we had 7mhz on a twgs and
were dang lucky to have that...i had to carry my //e boxes accross a
blizzard driven barren domain of a parking lot to my college dorm....musta
been a good 1/8th of a mile.....and got a paper cut when i opened up the ap2
boxes...kids today....don't understand 'real' computing....)

brad
former sysop lost gonzo bbs

[Henry]

Hey Brad.

Yes, a II/+/e version of the power supply will be released shortly -
possibly even this week. I'll post a notice here in the News Groups as soon
as it is tested and finished.

I know what you mean about "kids today". Being the second youngest "kid" I
know of who hangs out here, I can remember adding a System Saver to my old
IIe and people thinking I was "wild and crazy". Now if you're not
converting a IIgs in to a time machine for use in a NASA program no one
batts an eye. Funny how things change.


Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!

Post by bradw
can't remember if i asked this or not....is there gonna be a //e version of
this beast....(sorry the minds starting to go..i think i read this
someplace)
in that i have //e upgrades to the gs in //e cases...that 'might' motivate
me..assuming my $$$$ situation ever gets back to normal
ideally ..such a beast would have the nice littte pc power adaptors and a
//gs regular power plug as well as a //e power plug..thus if my //gs upgrade
motherboard (or i wanted to make a stealth gs) ever went poof ..i could put
a standard gs motherboard in the beast and just worry about the soldering of
the internal keyboard adaptor on a rom 1
and of coure there is the matter of even thou it is a //e case..the
motherboard is a //gs ...so power improvement there..prob would not hurt
either
just wondering...prob the power supply is too big for that leap and prob
200w in a //e case is just ..i don't know.. just ......obscene?
i mean how far is this 'mod'ing on here gonna go..do i have to get a demel
tool and start cutting radioactive or startrek designs thru and on the side
of my //e case and get that cool lighting tubing all the kids use on there
'cpu overcloced' pc boxes...to shine thru...maybe a nice green shade that
blinks?
...so that is what the sound card is for and the 'talk' of the 16mhz
twgs's.......whats next ..i hear liguid cooling is the in thing with pc
mod'ers....is garberstreet gonna corner the 'cool' mod'ed //e look....
(old fart wanders away.."yung puk kids..in my day we had 7mhz on a twgs and
were dang lucky to have that...i had to carry my //e boxes accross a
blizzard driven barren domain of a parking lot to my college dorm....musta
been a good 1/8th of a mile.....and got a paper cut when i opened up the ap2
boxes...kids today....don't understand 'real' computing....)
brad
former sysop lost gonzo bbs

[BluPhoenyx]

Now if you're not converting a IIgs in to a time machine for use in a NASA program no one
batts an eye.

Now there's an interesting idea. I wonder if a IIgs or perhaps a IIe
with a Uthernet card will interface with the TARDIS.

Cheers,
Mike T.

[Sean Fahey]

Post by BluPhoenyx

Now if you're not converting a IIgs in to a time machine for use in a
NASA program no one batts an eye.

Now there's an interesting idea. I wonder if a IIgs or perhaps a IIe
with a Uthernet card will interface with the TARDIS.

I'm sure some reTARDIS would try, if such a thing existed.

[MagerValp]

H> It's here! Finally a modern power supply replacement for your Apple
H> IIgs. Come visit the Website Store (www.GSE-Reactive.com) for all
H> the details.

If anyone here is planning on picking one of these up and is
interested in selling the old original PSU, I'm looking for a 220V
unit...