On Tue, 18 Mar 1997 06:56:13 GMT, mdwatt@usit.net (Marty Watt)
wrote:
>I have several items, trade preferred, but will consider all-cash
>offers:
>
>T1900 Toshiba laptop. 486/20, 4 meg RAM, 200MB harddrive, mono VGA
>LCD screen, 28.8 fax/modem included (pcmcia). DC input doesn't work
>correctly all the time, runs fine on charged batteries. Has power
>management software, Windows 3.1 and DOS 6.2. Power management
>software features "Resume", which allows instant power up, right
>where you left it (i.e., no boot up).
Errata: 25 MHz, 486sx, genuine Intel. Includes *2* PCMCIA modems
-- a PPI 28.8 with EZ port, and a generic 14.4.
>Briefcase-style carrying case for above.
>
>External monitor (color VGA), keyboard, mouse to convert above to
>desktop use.
Also have an Epson ECP/2 Stylus 400 inkjet printer.
>Heathkit 1-30MHz frequency counter, works, with manual.
>
>Heathkit VTVM (vacuum-tube volt meter) with RF probe, works, with
>manual.
>
>Would like to trade for a superhet (single-signal) multiband QRP
>rig, VFO/good freq. coverage (i.e., all the CW band at a minimum).
>Would consider a QRO rig that can be turned down to QRP levels,
>although size is a premium. Prefer small, but would consider most
>any offers of trade.
>
>Contact me direct via e-mail, please!
These items are still available. Had two people express interest in
the laptop, but I couldn't work a comfortable deal with either
individual. If we can't all walk away happy, the deal shouldn't be
done -- the friendships here are more valuable than equipment
trades. Net result is the deals got cancelled.
Several asked how much the laptop was worth. To answer that, I need
to explain a bit more about the DC input problem:
As for the DC problem. I've checked the AC/DC supply, and it's
pumping out 18V as rated. Most of the time the batteries charge (I
have two -- a NiMH and NiCd), but the NiMH battery is old and about
shot, and I don't get too much time on it (about 10 minutes max).
The NiCd was new a year ago, but NiCd are not good for this
application. I don't know if the NiMH can be reconditioned or not.
New OEM batteries (from the Toshiba web page) run around $85 or so
-- I'd think a clone would be cheaper than that, just like handheld
batteries.
Bottom line -- I'm not sure what's wrong with the DC input. If I
have a *reasonably* charged (i.e., not dead) battery, and boot up
from the battery, I can then plug in the DC suppy with no impact,
and go as long as I like. I just can't boot from the DC supply --
the DC input light on the case begins flashing green (not good)
about 1/4 the way through the boot cycle. It also won't boot in the
"resume" mode. It *may* be a diagnostic failsafe of some sort, with
no significant problem.
I haven't tried to open the case. I can't really figure out how to
do so. The DC input is near the joint where the screen connects to
the main case. I looked at one point at trying, and couldn't find
enough "screws" to loosen! Of course, I don't have a tech manual (I
do have all the operating manuals, though). I haven't contacted
tech support at Toshiba to get an estimate on the cost.
I put the value of the computer itself, with modem and carrying
case, if working perfectly, around $800. I'm deducting $300 from
that to cover the DC repair and possibly a new battery. Looking to
get about $500 in cash/trade. Still desire a multi-band QRP/QRO
rig, and can fudge about 20% or so on the value for something of
interest (either adding to yours or deducting from mine -- works out
to around a $400 trade).
Would also be *very* interested in a used O'scope -- analog, dual
trace, with probe. I'd think a 40MHz scope or higher would be about
right, used. I can even throw in the RS ProbeScope if needed. I
need to get back more to basics than the ProbeScope.
So, if you've got a single-signal recieve multi-band QRP rig
(Sierra, OHR, QRP+) or a spare O'scope with probes laying around,
and want a laptop for the field (486sx/25MHz/4meg), let me know. I
think I'm going to keep the Freq. Counter and VTVM with RF Probe
right now.
Have to travel to Indianapolis on Monday for a Tuesday interview.
Can try to arrange delivery along I-65 between Nashville and Indy.
72 es 73 de
Marty, KM7W
__________________________________________________________________
Jackson, Tennessee e-mail: mdwatt@usit.net
http://www.public.usit.net/mdwatt
"The Curmudgeon's Corner"
NorCal #???? - ARCI #7514 - QRP-L #953 - AK/QRP #098 - Grid EM55oq
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