Hi Rod
I'm sorry I haven't replied sooner, you are not forgotten. It is just
that my second 8/e was much harder to reach than I had hoped for. (I'm
shipping out a set of computers that are in the way).
DOH! I just recalled.. I have pictures online, these are my machines:
Type A:
http://www.pdp
Hello Pontus.
Thank you for the information.
Your two machines (colour sat apart) do fall into my A and B Types quite
well
Seeing the one with the one with the missing toggle switches reminds me
that I have
an enquiry out re getting some made.
I dont know if I have asked yo
On Mon, Jun 15, 2015 at 08:54:08AM +0100, Rod Smallwood wrote:
>
> Seeing the one with the one with the missing toggle switches reminds
> me that I have an enquiry out re getting some made.
I believe many would appreciate that. I'm lucky though and have spares
enough for my machine.
> I dont
Does anyone have documentation for the Intel MDS-740 hard disk system
for use with the MDS and Series II, Series III development systems?
The drive had one fixed and one removable platter, the removable being
a 12-sector 5440-style cartridge. The drive may have been a CDC 9427H,
or something simila
Thats OK
Its always worth asking.
One of the reasons for my efforts to make PDP parts is to produce spares
using modern
components to help replica builders and restorers.
In addition to the toggle switches I am trying to see if its possible to
reproduce the bezel
in a non-metal So
The default is 9600/8/N/1 but maybe someone messed with the default comms
parameters in OpenFirmware; have you just tried it at a bunch of different
baud rates on your terminal [emulator]? I believe sending a BREAK on ttya
is equivalent to the Stop-A from the graphics head but it's been a while
...
> The ripple on the power supplies is still going lower as we put more run
> time on the system. The power supplies are now within spec.
Capacitors reforming naturally?
> Warren made an Arduino based programmable baud rate generator that works
> for both serial ports. After some debugging, it wo
On Jun 14, 2015, at 12:05 AM, Mike Ross wrote:
> I'm trying to resurrect a couple of Sparcstation 10 systems. Is there
> anything 'funny' about the serial console settings on SS10 hardware? I
> thought they always defaulted to 9600-n-8-1, but I get voluminous
> gobbledygook at that, and at every
>
> Tony, thank you for your offer to supply replacement M452 Variable Clock
> modules for the console. We already have one jumpered for 110 baud for the
> Teletype. The other two M452 modules should be jumpered for 9600 baud and
> 38400 baud. The second serial port uses a M405 Crystal Clock module
>
> How in hell a *cable* can result in garbage beats me. I would expect
> data, or no data - not garbage data...
Two things spring to mind :
1) Open-circuit signal ground, with the ground therefore completed by mains
earth. I had a nasty
version of that years ago, the system would work with a
Folks,
I'm trying to resurrect a couple of Sparcstation 10 systems. Is there
anything 'funny' about the serial console settings on SS10 hardware? I
thought they always defaulted to 9600-n-8-1, but I get voluminous
gobbledygook at that, and at every other baud rate I've tried.
Both systems behave
On Jun 14, 2015, at 1:02 AM, Mike Ross wrote:
> I can't even see the hardware messages at power-on; just garbage - on both
> systems, at every baud rate I've tried on the emulator. Nowhere near
> booting OS.
If you hold down STOP-D while powering on, the system will go into diag mode.
It'll sho
> On Jun 14, 2015, at 06:53, Michael Thompson
> wrote:
>
> Dave Tumey sent us a new rubber hammer for the Teletype. This is the part
> that pushes the print drum against the ribbon and paper to print. These are
> newly molded parts that have not been available for decades. Works very
> nicely.
I have *only* the serial console. No working keyboard/mouse/screen.
Mike
On Sun, Jun 14, 2015 at 8:45 PM, r.stricklin wrote:
>
> On Jun 14, 2015, at 1:02 AM, Mike Ross wrote:
>
>> I can't even see the hardware messages at power-on; just garbage - on both
>> systems, at every baud rate I've tried
Dave Tumey sent us a new rubber hammer for the Teletype. This is the part
that pushes the print drum against the ribbon and paper to print. These are
newly molded parts that have not been available for decades. Works very
nicely.
The ripple on the power supplies is still going lower as we put more
I can't even see the hardware messages at power-on; just garbage - on both
systems, at every baud rate I've tried on the emulator. Nowhere near
booting OS.
On Jun 14, 2015 7:56 PM, "r.stricklin" wrote:
>
> On Jun 14, 2015, at 12:05 AM, Mike Ross wrote:
>
> > I'm trying to resurrect a couple of Sp
> On Jun 14, 2015, at 01:49, Mike Ross wrote:
>
> I have *only* the serial console. No working keyboard/mouse/screen.
If all else fails, do you have the means to look at the serial line with an
oscilloscope? Figuring out the port parameters that way might be easier than
trying every combinati
as long as it is done in a way that it can be restored to its original, i have no problems in using newer technology in older machines. we have a alix sbc build into our tek 4002a
for demonstrational purpouses, all done without damaging or altering the original machine.
On 14-06-15 17:25, tony d
> The rear DB25 serial connector is an A & B serial port combined.
>
> Sun had/sold a special Y-splitter cable to use for the combined port.
The RS232 specification allows for 2 serial channels on the DB25 connector. Most
machines only use the primary channel. and Sun were sensible enough to wire
> I'm trying to resurrect a couple of Sparcstation 10 systems. Is there
> anything 'funny' about the serial console settings on SS10 hardware? I
> thought they always defaulted to 9600-n-8-1, but I get voluminous
> gobbledygook at that, and at every other baud rate I've tried.
>
> Both systems beh
You never know ... I once had a network cable that would cause SS10s to
crash intermittently and refuse to boot. It was pretty consistent ... it
would fail out pretty much any unit I put in the position ... Finally I
ripped all the cabling out and started from fresh and ... the machine
plodded on a
Sorry, didn't notice I'd replied to an email rather than the list.
>From last night:
OK I'll have to get to the bottom of this at some point, but it seems
it WAS the cable! Tried another one and, at 9600
$ WARNING : No Keyboard Detected! $
MMU Context Table Reg Test
MMU Context Regi
(Both boxes are running Linux; one is the host for my SIMH TOPS-10
system, the other for KLH TOPS-20. Now I have to figure out how to
tickle them into giving a serial port login; it seems I'd forgotten
the last time I set them up they must have been configured to go
straight into X, so now the boot
I also think it is in the spirit of the computer - using what is available
to fix a problem at hand. I think the arduino was overkill when an attiny
(smaller, easier to hide) would probably serve just as well.
If you have the ttl logic bits lying around and know how to use them, fine.
Still would
>
> Date: Sun, 14 Jun 2015 15:25:08 +
> From: tony duell
> To: "General Discussion: On-Topic Posts"
> Subject: RE: PDP-12 Restoration at the RICM
>
> > Warren made an Arduino based programmable baud rate generator that works
> > for both serial ports. After some debugging, it works nicely.
>
You can get a whole HP 4957 these days for only $25 or so... it takes up a
bit more space than a plain BoB but you get a lot more functionality :O
Best,
Sean
On Sun, Jun 14, 2015 at 5:51 PM, Chuck Guzis wrote:
> On 06/14/2015 02:28 PM, Chris Osborn wrote:
>
>>
>> On Jun 14, 2015, at 2:18 PM,
+1 to Tony for heading down the right path.
The rear DB25 serial connector is an A & B serial port combined.
Sun had/sold a special Y-splitter cable to use for the combined port.
Here is pinout information from sunhelp.org in case you want to make one for
yourself from scratch.
http://www.su
I have an HP 88780 with the 800 option (confirmed empirically...) I'm
in the silicon valley neighborhood.
--
Jeff Woolsey
j...@jlw.com
Indeed, you use what is at hand and what you are comfortable with.
/P
On Sun, Jun 14, 2015 at 09:41:42PM +0200, Simon Claessen wrote:
> as long as it is done in a way that it can be restored to its
> original, i have no problems in using newer technology in older
> machines. we have a alix sbc b
While I agree that as long as things can be restored it's not a real
problem, I'm surprised that not more people consider it a serious overkill.
We're talking about putting in a rather complex computer to generate a
baud rate. Are people really that handicapped when it comes to building
hardwa
On Mon, Jun 15, 2015 at 11:52:28AM +0200, Johnny Billquist wrote:
>
> We're talking about putting in a rather complex computer to generate
> a baud rate. Are people really that handicapped when it comes to
> building hardware nowadays?
Speaking for myself, yes.
I have a Teensy 2.0 lying at my de
> We're talking about putting in a rather complex computer to generate
> a baud rate. Are people really that handicapped when it comes to
> building hardware nowadays?
Speaking as someone who didn't do that, but might well have - it's not
a question of "handicapped"; it's a question of convenienc
> From: Pontus Pihlgren
>> Seeing the one with the one with the missing toggle switches reminds
>> me that I have an enquiry out re getting some made.
> I believe many would appreciate that.
We probably ought to standardize our terminology to be slightly less
confusing. As we've
On Jun 15, 2015 9:11 AM, "Noel Chiappa" wrote:
>
> I'm not sure what the official DEC name is for the plastic lever which
> actuates the slide switch - anyone know?
I hear them referred to as handles.
>
> PS: If a way is developed to make the plastic levers, the 11/20 uses the
> exact same part,
I don't think it is over kill. If you want over kill try this:-
https://www.youtube.com/watch?v=ALXax3Gydl8
and FPGA implementation of the Baby or SSEM which had 32x32 bits of RAM. The
implementation uses around 1% of the Spartan 3E 1200K gates, and that includes
the logic to generate the VGA w
From: Kyle Owen: Monday, June 15, 2015 6:17 AM
PS: If a way is developed to make the plastic levers, the 11/20 uses the
exact same part, just in PDP-11 colours.
They've been 3D printed with the sintered nylon process, dyed and polished
with good results thanks to the efforts of Vince Slyngstad.
On Jun 15, 2015, at 3:06 AM, Pontus Pihlgren wrote:
> On Mon, Jun 15, 2015 at 11:52:28AM +0200, Johnny Billquist wrote:
>
>> We're talking about putting in a rather complex computer to generate
>> a baud rate. Are people really that handicapped when it comes to
>> building hardware nowadays?
>
I can tell you what they were called internally at DEC.
Mainly due to the fact I was there at the time.
They were called Toggles or Toggle switches and their use was called
'Toggling' hence 'To toggle in the bootstrap'
Any DEC field engineer of that time knew by heart the sequence of octal
numbe
> On Jun 14, 2015, at 18:38, Sean Caron wrote:
>
> You can get a whole HP 4957 these days for only $25 or so... it takes up a
> bit more space than a plain BoB but you get a lot more functionality :O
I recently bought an HP 4952A protocol analyzer for $70. There were ones listed
at least as lo
On 2015-06-15 9:35 AM, Dave G4UGM wrote:
I don't think it is over kill. If you want over kill try this:-
https://www.youtube.com/watch?v=ALXax3Gydl8
and FPGA implementation of the Baby or SSEM which had 32x32 bits of
RAM. The implementation uses around 1% of the Spartan 3E 1200K gates,
and tha
The revival process of the 11/750 continues. The power supplies is working
good and then I started testing the actual machine. But that was not a very
smooth journey to success. I have in total at least three complete CPU
board sets and just after quite a lot of board swapping it got running (I
thi
As usual, a long shot, but anybody in the list
like to get rid of one? Preferably Colorado ;-)
I wasn't aware that you are working on a 750 repair. Congratulations on the
progress you have already made! Are you using real console tapes, tu58em, or
something else?
If you can find one, I'll be happy to help out with tape images and so forth
for your bringup!
> On Jun 15, 2015, at 08:32, emanuel stiebler wrote:
>
> As usual, a long shot, but anybody in the list
> like to get rid of one? Preferably Colorado ;-)
Has anybody ever made a UNIBUS repeater with a high speed serial link between
the bus segments yet? I'm curious because my VAX-11/730 backplane is full, and
it would be nice to be able to experiment with additional hardware without
needing to pull out one of the existing boards, i.e., adding a T
> On Jun 15, 2015, at 8:57 AM, Mark J. Blair wrote:
>
> Has anybody ever made a UNIBUS repeater with a high speed serial link between
> the bus segments yet? I'm curious because my VAX-11/730 backplane is full,
> and it would be nice to be able to experiment with additional hardware
> without
Hi Mark,
Do you just need a 4 or 9 slot backplane?
I Don't see the need for a repeater unless I'm missing something.
Paul
On Mon, Jun 15, 2015 at 10:57 AM, Mark J. Blair wrote:
> Has anybody ever made a UNIBUS repeater with a high speed serial link
> between the bus segments yet? I'm curious
> On Jun 15, 2015, at 09:02, Guy Sotomayor wrote:
>
> I'm not specifically familiar with the 11/730, but what's wrong with just
> cabling up an expansion box "the old fashioned way" using BC11A cable?
Without losing anything else in the already-full rack, I'd need to route that
cable between
> On Jun 15, 2015, at 09:06, Paul Anderson wrote:
>
> Hi Mark,
>
> Do you just need a 4 or 9 slot backplane?
>
> I Don't see the need for a repeater unless I'm missing something.
An expansion without a reapeater would work just fine electrically. I'm curious
about whether some sort of repeat
BC11-A is flat, guessing 4 inches wide, but you man make nice 90 degree or
what ever angle you need easily.
On Mon, Jun 15, 2015 at 11:06 AM, Mark J. Blair wrote:
>
> > On Jun 15, 2015, at 09:02, Guy Sotomayor wrote:
> >
> > I'm not specifically familiar with the 11/730, but what's wrong with
I know some folks have been trying to get in touch with me for a while and I
want to apologize for not getting back in touch with folks before now.
The short and long of it has been the fact that first my wife had health
issues, then I had health issues and finally in the middle of all of this m
I know that others have discussed the issue, but can someone tell me
concisely how to avoid multiple copies of the same message on cctalk?
Overnight, 54 new messages arrived in my inbox. The problem was that
I'd seem a large number of them a day or two before.
What's the trick to keeping th
I hope that you and your wife are doing better now!
--
Mark J. Blair, NF6X
http://www.nf6x.net/
For a while now, folks have been asking me about UA11s. I've been putting them
off because I'm sure I have some boards but can't find them until I unpack the
"basement" of my new shop. I figured that I'd have done that by now but it's
*still* not done. :-(
So, in the name of customer service
> On Jun 15, 2015, at 9:13 AM, Mark J. Blair wrote:
>
> I hope that you and your wife are doing better now!
Thanks.
She's doing great! I'm still recovering.
TTFN - Guy
> On Jun 15, 2015, at 9:15 AM, Guy Sotomayor wrote:
>
> For a while now, folks have been asking me about UA11s. I've been putting
> them off because I'm sure I have some boards but can't find them until I
> unpack the "basement" of my new shop. I figured that I'd have done that by
> now but
On 6/15/2015 9:08 AM, Toby Thain wrote:
On 2015-06-15 9:35 AM, Dave G4UGM wrote:
I don't think it is over kill. If you want over kill try this:-
https://www.youtube.com/watch?v=ALXax3Gydl8
and FPGA implementation of the Baby or SSEM which had 32x32 bits of
RAM. The implementation uses around
> On Jun 15, 2015, at 09:18, ben wrote:
> But alas the software does *not* support the older chips.
> You want to make a mod 5 years down the road, sorry we do not
> support that model any more. TTL needs to be stock piled
> now for the next +50 years.
Good point. Just as TTL needs to be stockp
On Sat, 13 Jun 2015, Mark J. Blair wrote:
> How do I respond to tape mount requests on the same console where I'm
> running BACKUP? When I get the request asking whether to create a new tape
> volume, it doesn't seem to respond to terminal input.
First, initialize all the tapes you might need usi
On Sat, 13 Jun 2015, Mark J. Blair wrote:
> Thanks, I will read that. But how do I enter the reply command when the
> BACKUP program is hogging the console? Is there a VMS equivalent to the
> way a task can be suspended in UNIX with ^Z?
There are several:
$ submit /queue=sys$batch /nopri
> I also think it is in the spirit of the computer - using what is available
> to fix a problem at hand. I think the arduino was overkill when an attiny
> (smaller, easier to hide) would probably serve just as well.
Would you put plastic handles on a piecc of antique furniture? Would you
make th
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of ben
> Sent: 15 June 2015 17:18
> To: cctalk@classiccmp.org
> Subject: Re: FPGA tricks - Re: using new technology on old machines. Was:
> PDP-12 Restoration at the RICM
>
> On 6/15/2015 9:08 AM, Toby Tha
> > We're talking about putting in a rather complex computer to generate
> > a baud rate. Are people really that handicapped when it comes to
> > building hardware nowadays?
>
> Speaking for myself, yes.
Unfortunately I believe you. Use at least a thousand times more components than
you need to.
On Mon, 15 Jun 2015, Chuck Guzis wrote:
I know that others have discussed the issue, but can someone tell me
concisely how to avoid multiple copies of the same message on cctalk?
Overnight, 54 new messages arrived in my inbox. The problem was that I'd
seem a large number of them a day or tw
Hello list!
I try to autoboot my Vaxstation 4000/60.
The reason is that i want to drive the vax headless.
I have set Disk DKA300 as boot hdd in console mode.
I SET HALT 2 ( reboot).
In this configutarion the system starts into SYSBOOT>.
There i have to give the command CONTINUE to boot VMS.
Is t
>
> I'm not specifically familiar with the 11/730, but what's wrong with just
> cabling up an expansion box "the old
> fashioned way" using BC11A cable?
Nothing electtically...
The problem is that the 11/730 mouting box (BA11-Z??) is a bit odd. The boards
go in from the left. Cables end up
g
On 06/15/2015 10:06 AM, Mike Loewen wrote:
I created a filter in my email client (alpine), which looks for
"cct...@classiccmp.org" on the "To:" header and drops it into the bit
bucket. The duplicates still get to my system, but I never see them.
The only time I've seen duplicates since I ac
> From: Rod Smallwood
> I can tell you what they were called internally at DEC.
> ...
> They were called Toggles or Toggle switches and their use was called
> 'Toggling' hence 'To toggle in the bootstrap'
Maybe because on the older machines (e.g. PDP-1) they really were toggle
On 06/14/2015 12:41 PM, Simon Claessen wrote:
as long as it is done in a way that it can be restored to its original,
i have no problems in using newer technology in older machines. we have
a alix sbc build into our tek 4002a for demonstrational purpouses, all
done without damaging or altering th
And I would like to find one in the UK
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mark J.
> Blair
> Sent: 15 June 2015 16:34
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: VAX 11/730
>
> If you can find one, I'll be h
On 6/15/2015 10:57 AM, Dave G4UGM wrote:
But alas the software does *not* support the older chips.
How old is old? I managed to get a copy of ISE10.1 downloaded,
installed and running without phoning, ringing or otherwise jumping
through hoops. That supports the Spartan 2 which has been obsolete
> On Jun 15, 2015, at 1:28 PM, ben wrote:
>
> On 6/15/2015 10:57 AM, Dave G4UGM wrote:
>> But alas the software does *not* support the older chips.
>>
>> How old is old? I managed to get a copy of ISE10.1 downloaded,
>> installed and running without phoning, ringing or otherwise jumping
>> thro
On Mon, 15 Jun 2015, Marco Rauhut wrote:
> In this configutarion the system starts into SYSBOOT>.
> There i have to give the command CONTINUE to boot VMS.
> Is there any way to overide then CONTINUE command?
It sounds like your system defaults to a conversational boot which is, as
far as I recall
On Mon, Jun 15, 2015 at 11:11 AM, tony duell wrote:
> Totally useless coincidence that I noticed while doing a cryptic crossword :
>
> 'ethernet' is an anagram of 'three ten', and the original ethernet speeds
> were three and then
> ten megabits/second.
For bonus points, what's the actual data r
On 2015-06-15 19:04, Marco Rauhut wrote:
Hello list!
I try to autoboot my Vaxstation 4000/60.
The reason is that i want to drive the vax headless.
I have set Disk DKA300 as boot hdd in console mode.
I SET HALT 2 ( reboot).
In this configutarion the system starts into SYSBOOT>.
There i have to g
On 6/15/2015 11:33 AM, Paul Koning wrote:
On Jun 15, 2015, at 1:28 PM, ben wrote:
On 6/15/2015 10:57 AM, Dave G4UGM wrote:
But alas the software does *not* support the older chips.
How old is old? I managed to get a copy of ISE10.1 downloaded,
installed and running without phoning, ringing
> On Jun 15, 2015, at 10:11 , tony duell wrote:
>
>>
>> I'm not specifically familiar with the 11/730, but what's wrong with just
>> cabling up an expansion box "the old
>> fashioned way" using BC11A cable?
>
> Nothing electtically...
>
> The problem is that the 11/730 mouting box (BA11-Z?
> On Jun 15, 2015, at 09:50 , Richard Loken
> wrote:
>
> You need to read a little tome entitled "Mastering VMS" by David W. Byron or
> maybe "The VMS User's Manual" that came with VAX/VMS Version 5.
I'll look for those. Thanks!
ANd the /NOASSIST switch worked for me. I didn't even need to pr
2015-06-15 17:32 GMT+02:00 Mark J. Blair :
> I wasn't aware that you are working on a 750 repair. Congratulations on
> the progress you have already made! Are you using real console tapes,
> tu58em, or something else?
>
Well. I am probably working on to much simultaneously. But this machine is
10
> On Jun 15, 2015, at 09:53 , tony duell wrote:
>
>
>> I also think it is in the spirit of the computer - using what is available
>> to fix a problem at hand. I think the arduino was overkill when an attiny
>> (smaller, easier to hide) would probably serve just as well.
>
> Would you put plast
> On Jun 15, 2015, at 11:06 , Mattis Lind wrote:
>
> Well. I am probably working on to much simultaneously.
I am very guilty of that, too! :)
> Then I compiled your fork of tu58em on github. And it worked perfect. I
> didn't need to use the special vax mode that you have implemented though.
>
> > The bad thing with the 11/750 is that is has so many socketed TTL gate
> > array chips. Sockets are bad. And gate arrays are bad. In that sense I
Years ago I was offered an 11/750 and turned it down as soon as I saw
inside the cardcage. No way would I want to maintain that mass of
custom gate
> That's a much better description of the 730's mechanical peculiarities than I
> came up with. I was more concerned
> with cable management between the two racks, since I have them in a tiny room
> where I need to roll them
> around to get access to the back (it's literally a tiny bedroom in
> >
> > Would you put plastic handles on a piecc of antique furniture? Would you
> > make the seatboard for an antique longcase clock from MDF?
> > Both are easily reversable, BTW.
>
> Sure! Temporarily and reversibly, of course, and I'd hope to replace them
> with proper stuff when possible. But
Now my system boots automaticaly! Thanks to all!
>>> SET BOOT DKA300: #set standard boot device
>>> SET BFLG 0 #set R5 to 0 -> That`s the missing trick!
SET HAPPY = 1 ;-)
Marco
Am 15.06.2015 um 19:45 schrieb Johnny Billquist:
On 2015-06-15 19:04, Marco Rauhut wrote:
Hello list
On my phone right now. Might type more after lunch.
I think I have some 730 manuals that are not yet on Bitsavers. Some original
and some photocopies. I plan to scan all of them.
I also may dump the console firmware PROMs at some point. I've already done
some preliminary disassembly of the TU
> I also may dump the console firmware PROMs at some point. I've already done
> some preliminary
> disassembly of the TU58 firmware.
I am pretty sure I dumped all the PROMs and PALs in the CPU of my 11/730 (but
not the ones in the
R80) long before there was a bitsavers. I can see if I can fin
> On Jun 15, 2015, at 9:17 AM, Guy Sotomayor wrote:
>
>
>> On Jun 15, 2015, at 9:15 AM, Guy Sotomayor wrote:
>>
>> For a while now, folks have been asking me about UA11s. I've been putting
>> them off because I'm sure I have some boards but can't find them until I
>> unpack the "basement"
> We're talking about putting in a rather complex computer to generate a
> baud rate. Are people really that handicapped when it comes to building
> hardware nowadays? Are people aware how easy baud generators are?
I've jsut turned up the M452 schematic. Has anyone else looked at it?
It's a RC
> On Jun 15, 2015, at 11:59 , tony duell wrote:
>
>
>> I also may dump the console firmware PROMs at some point. I've already done
>> some preliminary
>> disassembly of the TU58 firmware.
>
> I am pretty sure I dumped all the PROMs and PALs in the CPU of my 11/730 (but
> not the ones in the
> On Jun 15, 2015, at 11:54 , tony duell wrote:
> Why not do it properly first time? What is the rush in bringing up a classic
> computer? And for a test,
> use the TTL pulse generator you have on your bench.
I don't have one. I have a lot of test equipment, but mostly for RF work. If I
needed
> Tony, thank you for your offer to supply replacement M452 Variable Clock
> modules for the console. We already have one jumpered for 110 baud for the
> Teletype. The other two M452 modules should be jumpered for 9600 baud and
> 38400 baud. The second serial port uses a M405 Crystal Clock module
If you mean boot directly so that you don't have to CONTINUE:
>From the >>> prompt
>>> set boot_osflags 0,0
>>> boot/1 DKA300:
Let me know if that does not work, recalling from memory...
Bill
On Mon, Jun 15, 2015 at 1:04 PM, Marco Rauhut
wrote:
> Hello list!
>
> I try to autoboot my Vaxstati
> On Jun 15, 2015, at 12:15 , tony duell wrote:
>
> I am very worried that people would rather use a microcontroller than change
> a couple of passives. Can't anyone read a schematic and think
The exact same argument could be made for somebody using an NE555 instead of
discrete transistors
if you want to save permanently you need to set this before you boot,
whatever command you use to actually boot.
>>> set boot_osflags 0,0
I thought for the 4000 specifically (colon, no equal sign)
>>> boot/r5:0
... to bypass conversational boot
On Mon, Jun 15, 2015 at 1:35 PM, Richard Loken <
> On Jun 15, 2015, at 11:41 , tony duell wrote:
>
> My 11/730 was totally decabled to get it to me. I think I have most of the
> original cables, and most of the
> metalwork. I've read the descriptions in the hardware manual on bitsavers and
> I am not looking forward to
> routing all those
On Mon, Jun 15, 2015 at 04:55:57PM +, tony duell wrote:
>
> Unfortunately I believe you. Use at least a thousand times more components
> than
> you need to.
Actually it's just two, a Teensy and a usb cable. (Sorry, I couldn't
resist).
>
> In general this worries me if you are restoring a
> On Jun 15, 2015, at 11:54 , tony duell wrote:
> Ah, 'there's not the time to do it properly, but there is the time to do it
> again'.
>
> Why not do it properly first time? What is the rush in bringing up a classic
> computer?
Sorry for yet another reply, but I didn't think of this until ju
On Mon, Jun 15, 2015 at 07:15:14PM +, tony duell wrote:
>
> I am very worried that people would rather use a microcontroller than change
> a couple of passives. Can't anyone read a schematic and think
Nope. I didn't know this hobby required a degree in electrical
engineering.
By your cr
On Mon, Jun 15, 2015 at 04:53:01PM +, tony duell wrote:
>
> > I also think it is in the spirit of the computer - using what is available
> > to fix a problem at hand. I think the arduino was overkill when an attiny
> > (smaller, easier to hide) would probably serve just as well.
>
> Would you
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