Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!ames!haven!decuac!shlump.nac.dec.com!snoc01.enet.dec.com!cameronjames
From: cameronjames@snoc01.enet.dec.com (My Name)
Newsgroups: comp.sys.tandy
Subject: Re: File transfer software for TRS-80 model 100?
Message-ID: <1990Dec17.081751@snoc01.enet.dec.com>
Date: 16 Dec 90 21:24:03 GMT
References: <YETSKO.90Dec14100907@celtic.InterLan.COM> <1990Dec12.123645.16070@ugle.unit.no>
Sender: newsdaemon@shlump.nac.dec.com
Reply-To: cameronjames@snoc01.enet.dec.com (My Name)
Organization: Digital Equipment Corporation
Lines: 18

In article <YETSKO.90Dec14100907@celtic.InterLan.COM>,
yetsko@interlan.Interlan.COM (Mike Yetsko) writes:

|>BTW, a lot of communications problems with the 100 are because it is 5-volt
|>only on the RS-232,

I know it is not so on the later model; the 102.  I've measured the voltages and
they come
to a respectable 12-14 volts.  Pulling too much current from the RS-232 port
does tend to
cause the 5-volt supply in the unit to fold up.  Shorting the RS-232 on my 102
has led to
memory loss (mind you, the batteries were a bit marginal at the time; the
battery warning
light was on; so I've learnt not to do this!).

Regards...
James Cameron