6 Jun
2023
6 Jun
'23
9:38 p.m.
Message: 7
Date: Tue, 06 Jun 2023 02:41:56 +0000
From: John Floren <john(a)jfloren.net>
Subject: [cctalk] Re: Getting floppy images to/from real floppy disks.
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk(a)classiccmp.org>
It's funny that luggable power packs come up here as I'm trying to revive my
Otrona >Attache... The power supply does nothing on AC input, even after a recapping,
so I >thought I'd investigate the "DC Power Option" described in the
manual. Unfortunately I >can't find any record that Otrona ever actually *sold* a
"DC Power Option", which >would plug into an unpopulated 6-pin Molex
connector on the back of the device. >Interestingly, the header inside the power supply
labeled "DC Option" is a 7-pin >header, so I'm not sure which pin was
"optional" for the external connector!
I'd just replace the power supply wholesale with a little ATX supply or something, but
>the machine needs 5V, 12V, -12V, and 15V; the latter is used to power the CRT and
>represents a real challenge! I've yet to find anything that outputs all 4 levels
at a >reasonable price.
john
I have an Otrona Attache 8:16 with the DC option, so it was sold. (I used both the Osborne
and the Otrona in Peru, so having a battery option was an advantage.) However, my Attache
has the disk drives that both spin up at the same time, and the DC option does not supply
enough power to properly spin both drives, so the computer will reboot if you try to read
or write anything to disk while on DC!
I’m traveling now, but will open up my Attache and take some pictures for you in a couple
of weeks.
Bob