On 2019-12-04 21:55, rescue wrote:
I have a TRS-80 Model III with a IV upgrade in it (non gate array).
I have a hunch that one or two of the HALs are bad (the primary one
being 8075208).
Anyone have the JED files to program any of these HALs into PALs or
GALs ?
Anyone know a source for
On 12/5/19 12:39 PM, Eric Smith via cctalk wrote:
Last year I read most of the PALs and HALs of a TRS-80 Model 16B main
board (same as Model 12 main board). I was surprised that none of the
PALs were protected, and even more surprised that some (but not all)
of the HALs could be read as PALs.
On 12/5/19 6:13 PM, Glen Slick wrote:
7220C_7220T_OperatingAndProgrammingManual_07220-90003_229pages_Feb81.pdf
http://www.hpmuseum.net/document.php?hwfile=1567
doh! Thanks. I'd been to that site already, but somehow managed to
completely miss the 'documentation' link. That should do the
7220C_7220T_OperatingAndProgrammingManual_07220-90003_229pages_Feb81.pdf
http://www.hpmuseum.net/document.php?hwfile=1567
Page 195, Connecting the RS-232-C Interface
On Thu, Dec 5, 2019, 3:34 PM Jules Richardson via cctalk <
cctalk@classiccmp.org> wrote:
>
> Hi all,
>
> I picked up an HP
Hi all,
I picked up an HP 7220C flatbed plotter the other day which (after freeing
the stuck carriage) is responding to panel commands in 'local' mode. For
the terminal RS-232 interface, does anyone happen to know:
a) The character size (7 or 8 bits)?
b) If the connection between terminal
On Wed, Dec 4, 2019 at 11:08 PM rescue via cctalk
wrote:
> I have a TRS-80 Model III with a IV upgrade in it (non gate array).
> I have a hunch that one or two of the HALs are bad (the primary one
> Anyone know if these can be read, or if they are protected (for
> example, if I were able to
Back in 2000, Jay Jaeger generously helped me read some old backup tapes
from a RSTS V7.0-07 system.
I'm not sure why I hadn't tried before, but I recently thought I could
try to run those circa-1982 BASIC-PLUS and FORTRAN programs under emulation.
And maybe even in a browser. There's a
As an example of a unit that should work:
https://www.ebay.com/itm/CAC-Carrier-Access-Adit-600-TDM-Controller-CMG-01-Router-2-FXS-8C-Cards-AC-616/362591377447?hash=item546c215827:g:4FEAAOSwQLRbqncW:sc:UPSGround!30106!US!-1
The FXS cards output out the back using a 50-pin / 25-pair AMP telephone
With the solder tabs you are not soldering directly to the case, you are
soldering to the tab.
If you try to solder to the case, the electrolyte will evaporate causing excess
pressure in the case. This will burst the seal. For a lithium coin cell this
can mean a fire.
As was mentioned, the
