Got the following stuff that need homes
Brand New in Box Apple Keyboard II with cable $20 dollars
BackPack 5.25inch Parallel Port Floppy Drive- Missing PSU, Requires 12V
1.25AMP DC
HaBaDisk 800k Floppy Drive for Macintosh $20 dollars
Macintosh SE Logic Board with MacViking Video card- comes with all
cables and hardware to install into a Mac SE $40 dollars
Nice early 82 Apple IIe system with Monitor 2, 2 Matching Disk IIs,
Super Serial card and Microsoft Softcard Z80 Card $200
1 Early 83 Apple IIe, one broken key, works $25
1 Later //e Enhanced, Broken Delete Key otherwise works fine $25
I accept PayPal
Thanks
Steve
Someone has claimed the entire batch.
Thank you much for all the responses.
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
(830)792-3400 phone (830)792-3404 fax
AOL IM elcpls
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When the sailor gets into a battle station situation he could take the
terminal with him for either armor, or to use the keyboard to bash
someones brains out, or strangle them with the cable.
Looks appropriate for the USS Iowa, or any of the 4 Iowa class ships.
http://www.navsource.org/archives/01/0161020.jpg
page of photos is at if you want to see more BB-61
http://www.navsource.org/archives/01/61g.htm
Thanks
Jim
Since I support the CBM crowd, I've had more than a few people send me
comments over the past few years, asking when I might consider offering
a replacement power supply for the home computing machines (VIC-20, 64,
128, +4)
Initially, I resisted for liability reasons and certification costs.
But, I decided earlier this year to put off those questions for a bit
and just see what might be technically and economically possible.
I've chased a few ultimately fruitless options, and I thought I'd see if
some fellow soul on this list might have some ideas.
Obviously, the first thought was a complete custom supply. My interest
was never in power design, so I am ill-equipped (and uncertain of my
abilities) to design such an item myself. Thus, I started looking for a
manufacturer that could design one.
Absolute requirements:
5VDC at 4.3A.
9VAC at 9VA unregulated
To this I added my requirements:
The 5VDC be a switching PSU output
ISO C13 input power jack (so I can support many areas without building
custom power cords
115/230 switchable design (or two very similar designs that can handle
the 2 voltages)
My cost under USD$30.00 per unit.
Enclosed finished case, or be able to fit in a commonly available case
design.
Someone put me in touch with Stontronics overseas, which worked on an
initial quote. But, I think the C13 and 115/230 requirements scared
them off.
I solicited information from Bear Power Supplies in the US, but they did
not seem too keen on continuing the discussion, so I have nothing from them.
I've also tried overseas suppliers, but I have not yielded fruit yet.
I've asked all the PSU suppliers on globalsources.com and alibaba.com
I have struggled to find a custom PSU manufacturer that can handle a
suitable design.
Being frustrated with the direct approach, I thought I'd try a different
path, and find a 9VAC or 5VDC single output power supply. I found a
single output large amperage 5VDC supply, but then I got stumped on
finding a way to synthesize a 9VAC isolated output from the 5VDC. A
simplistic approach would involve creating a harsh +-9V square wave, but
it needs to be at least .5A (to run the cassette deck on the 64/128),
and I worry that the noise on a square wave @ 1A would wreck the audio
and video noise level in the machine, which is not the best to start
with. Even ignoring that, I need to double or quadruple the voltage to
get the 18V rail to rail voltages I need.
On the 9VAC front, I had little luck finding a suitable 9VAC supply that
is 45VA or 63VA to support a 5VDC at 5A draw while leaving enough for the
5A 5VDC output. As well, I am not sure I am equipped to design a
switching 5V PSU from a 9VAC source.
With the old power bricks getting more brittle and prone to failure each
day, I feel some sense of urgency to find some solution for folks.
For liability reasons and because 5VDC is the more important voltage in
the units, I myself lean towards a small box that turns 5VDC into 5VDC
and 9VAC, but designing a voltage doubler/sine wave generator/isolation
transformer solution is far beyond my comfort zone. If this is not a
complicated task, I am wondering if someone on-list is up for a small
freelancing effort to design such a unit. It needs to contend with the
issues outlined in this PDF (http://www.ide64.org/power_des.pdf) in that
the noted design won't work as is since I think people need to be free
to use the power switch on their machine.
There might not be a reasonable solution, but I thought I'd share in
case I am missing an option.
Jim
--
Jim Brain
brain at jbrain.comwww.jbrain.com
