28 Feb
2009
28 Feb
'09
8:24 p.m.
-----------Original Message:
Date: Fri, 27 Feb 2009 01:04:49 -0500
From: Ethan Dicks <ethan.dicks at gmail.com>
Subject: Re: Recommendations for AIM-65 power supply?
On Fri, Feb 27, 2009 at 12:49 AM, Josh Dersch <derschjo at mail.msu.edu> wrote:
Title basically says it all -- anyone have any
recommendations for a decent
power supply for an AIM-65? ?I have it running right now on just 5V, but I
need something that puts out 24V so I can run the little printer, too :).
?It'd be nice nice to something small enough to fit inside the enclosure
this thing came in but I'm not that picky. ?My searches on the 'net reveal a
lot of choices, so I'm looking for advice on what to look out for.
For those playing along at home, the AIM-65 wants 5V at ~2A, and 24V at
~2.5A.
I don't know where to get one now, but my AIM came packaged with a
steel bottom, a plastic top, and a PSU that has "AIM65" in the part
number and that provides +24V. It looks like many other 1970s
open-frame switchers with a large 1/8" or 3/16" aluminum baseplate and
one or two power transistors, but unlike the others, it has more than
just +5, and +/-12V.
So at one point, someone was making 3"x4"x2" PSUs just for the AIM-65.
Unless you happened to run across some that someone has as a stash of
spares, I don't know where you'd find that exact model now, but it
does exist.
-ethan
---------------Reply:
Well, I do have a 'stash' of about 6 or so but unfortunately (for you) I also
have a stash of AIM-65s. As a matter of fact I'm looking at several right
now to see just how many are worth saving; I might end up with one or
two without working printers, in which case I might have a spare supply.
I'll keep you in mind, but meanwhile it shouldn't be a big problem finding
24V somewhere; the required current is nowhere near what the 8" drives
used. As Dwight suggests, it oughta be fairly simple to adapt the +/-12V
on a PC PS.
FWIW, there were at least two suppliers: initially Condor Inc. supplied one
(part no. AA524-AIM65), and later Rockwell also supplied a fancier one
made by Lestronics (Part no. A65-004-03). The Condor 24V supply looks
like just a half-wave diode, cap and Zener.
mike
28 Feb
28 Feb
8:53 p.m.
Jameco lists several supplies that might work if all you need is +5
and +24. Stock no. 194897 shows +5 at 3.5A and +24 at 2A for about
$33.
Jameco also has an interactive on-line product selector.
Anotehr alternative is to scavenge an old linear PSU from an 8"
floppy box. These supply +5 and +24 at pretty hefty currents.
--Chuck
3 Mar
3 Mar
11:58 p.m.
Excellent -- that looks perfect for my needs, I've ordered one. Thanks
for finding that... I'd looked on mouser & digi-key but wasn't having
much luck finding something that wasn't $150 :).
Josh
Chuck Guzis wrote:
Jameco lists several supplies that might work if all
you need is +5
and +24. Stock no. 194897 shows +5 at 3.5A and +24 at 2A for about
$33.
Jameco also has an interactive on-line product selector.
Anotehr alternative is to scavenge an old linear PSU from an 8"
floppy box. These supply +5 and +24 at pretty hefty currents.
--Chuck
1:03 a.m.
On Sat, Feb 28, 2009 at 8:24 PM, M H Stein <dm561 at torfree.net> wrote:
Date: Fri, 27 Feb 2009 01:04:49 -0500
From: Ethan Dicks <ethan.dicks at gmail.com>
On Fri, Feb 27, 2009 at 12:49 AM, Josh Dersch <derschjo at mail.msu.edu> wrote:
I checked. That's the one I have, the Condor
-ethan
Title basically says it all -- anyone have any
recommendations for a decent
power supply for an AIM-65? ?I have it running right now on just 5V, but I
need something that puts out 24V so I can run the little printer, too :).
I don't know where to get one now, but my AIM came packaged with a
steel bottom, a plastic top, and a PSU that has "AIM65" in the part
number and that provides +24V.
---------------Reply:
Well, I do have a 'stash' of about 6 or so but unfortunately (for you) I also
have a stash of AIM-65s...
FWIW, there were at least two suppliers: initially Condor Inc. supplied one
(part no. AA524-AIM65)... The Condor 24V supply looks
like just a half-wave diode, cap and Zener. 
11:13 a.m.
Date: Tue, 3 Mar 2009 01:03:27 -0500
From: ethan.dicks at gmail.com
To: cctalk at classiccmp.org
Subject: Re: Recommendations for AIM-65 power supply?
On Sat, Feb 28, 2009 at 8:24 PM, M H Stein <dm561 at torfree.net> wrote:
> Date: Fri, 27 Feb 2009 01:04:49 -0500
> From: Ethan Dicks <ethan.dicks at gmail.com>
>
> On Fri, Feb 27, 2009 at 12:49 AM, Josh Dersch <derschjo at mail.msu.edu>
wrote:
---snip---
FWIW, there were at least two suppliers: initially Condor Inc. supplied one
(part no. AA524-AIM65)... The Condor 24V supply looks
like just a half-wave diode, cap and Zener.
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