Dear Brian,
I'm italian electrical engineer expert in designing power
inverters mainly using SCR components which are really preferable under
the specific power dissipation and reliability to to sudden gradient of
voltage/current to be superimposed to the SCR itself. Over the several
technical articles written on the inductive loads topics, nothing
related to inductice current coming back from the load to the source.
With SCR I have to foresee power diode; with mosfet and IGBT this is
automatically achieved due to reverse diode encapsulated.
This is over
the problem due to first istant peak current and surge voltage at a
mosfet commutation switching.
What do you think about.
Regards,
Max
> M9312 PROM goodness to be found at:
ftp://ftp.dbit.com/pub/pdp11/boot/prom/
These are John's own versions of the code, and are just disk bootstraps.
I was trying to locate the MU boot prom for someone.
Hans Pufal was maintaining the CCC for a time. I can't seem to find it
anymore.
Does anyone know where it currently resides or if it still exists?
Thanks!
--
Erik Klein
www.vintage-computer.comwww.vintage-computer.com/vcforum
The Vintage Computer Forum
This is something we don't hear a lot about on the list.
A lot of it is on-topic, and some of the more obscure kit was based on
fairly common single-board computers of their day. The PPG Wave could run
All:
ARRRGH! I just {stupidly} bid on and won a Panasonic 616 phone
system to experiment with the BBS project that was discussed last week.
Unfortunately, this is NOT the right model -- I got the all-digital version
and not the hybrid.
Does anyone need a working 6x16 phone system for something other
than a BBS project? I'm looking for $75 for it -- I'll eat the shipping. It
includes the KSU and 4 extensions; supposedly working/removed from service.
Other options include a trade for a hybrid 308/616/1232 model.
Please contact off-list if interested. Thanks
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
Just wanted to let you guys know about the pdp11 message board I've been
running. It's been up for awhile, I just never mentioned it on this list.
http://pdpusers.dyndns.org <http://pdpusers.dyndns.org/>
Take a look!
Julian
Bentley Auctioneers is having another Los Alamos/Sandia Labs and Pantex
(your local nuclear bomb maker) auction in Albuquerque, New Mexico this
weekend.
Spotted were some Sun 3-80's and a Dec RL02 with probably other goodies.
http://www.bentleysauction.com/misc/catalogs/nm081305.txt
If your in the area, probably worth the drive.
Cheers
Tom
