On 12/24/2013 09:35 PM, Johnny Billquist wrote:
I have had a whole bunch of VT320 give up on me over the years. It's
always been the flyback... I think there might even be some info on the
net about it. And I think I've heard of people locating a source for new
flybacks.
Oh really? That would be great...I have at least two with dead flybacks.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
On 2013-12-24 18:33, Cory Smelosky wrote:
Did this email send previously 4 times? I never got a response nor did I
get my own email, so apologies if Exchange being the dumbest mailserver
ever has caused you pain and suffering in the form of repeated emails.
My VT320 decided to fail last night.
It was running fine, I stepped away, returned to it off and repeatedly
clicking/ticking. It sounded like either a stuck relay or the flyback
arcing. The screen would occasionally flash and the current draw would
fluctuate between 2W and 17-25W until it eventually turned on and ran
fine.
Any theories? Should I distrust the VT320 or was it just something like a
stuck relay that's older than me? I grabbed pictures of the board but
they never seemed to actually get anywhere.
I have had a whole bunch of VT320 give up on me over the years. It's always been the flyback... I think there might even be some info on the net about it. And I think I've heard of people locating a source for new flybacks.
Johnny
On 2013-12-24 20:40, Dave McGuire wrote:
On 12/24/2013 12:27 PM, Cory Smelosky wrote:
DEUNA and DELUA are the same from a program point of view. They have different
microcode, but that is detected at runtime, and the right microcode is loaded.
The rest work the same. They use the same drivers, both in DECnet and in plain
RSX. (Yes, there is an ethernet driver for Unibus, that you can use if you
have the controller, but do not want DECnet.)
What're the differences between the two again? I have a DEUNA for my
11/44 I still need to get rolling.
The DELUA is one board, while the DEUNA is two, I can tell you that much.
Right. In addition, the DEUNA have a PDP-11 at the heard, while the DELUA have a 68K.
So, at the microcode level, they are totally different.
The DELUA also have a better ethernet controller (a LANCE chip).
In short, the DELUA is improved in most ways. But it's fine details.
Johnny
On Tue, 24 Dec 2013, Dave McGuire wrote:
On 12/24/2013 12:33 PM, Cory Smelosky wrote:
Did this email send previously 4 times? I never got a response nor did I
get my own email, so apologies if Exchange being the dumbest mailserver
ever has caused you pain and suffering in the form of repeated emails.
My God. Why do you run that garbage? Nobody with half a clue runs
that shit on purpose.
It was more reliable than my previous mailserver which is the absurdly sad
part.
I can set another mailserver up in a couple hours for $7/mo....I don't
know why I don't do that.
My VT320 decided to fail last night.
It was running fine, I stepped away, returned to it off and repeatedly
clicking/ticking. It sounded like either a stuck relay or the flyback
arcing. The screen would occasionally flash and the current draw would
fluctuate between 2W and 17-25W until it eventually turned on and ran
fine.
Any theories? Should I distrust the VT320 or was it just something like a
stuck relay that's older than me? I grabbed pictures of the board but
they never seemed to actually get anywhere.
Electrolytic capacitors. Though that's a bit early for them to start
failing; VT320s aren't all that old, and I have yet to see a bad one.
That would explain the fluctuating voltage until everything settled.
-Dave
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
On 12/24/2013 12:33 PM, Cory Smelosky wrote:
Did this email send previously 4 times? I never got a response nor did I
get my own email, so apologies if Exchange being the dumbest mailserver
ever has caused you pain and suffering in the form of repeated emails.
My God. Why do you run that garbage? Nobody with half a clue runs
that shit on purpose.
My VT320 decided to fail last night.
It was running fine, I stepped away, returned to it off and repeatedly
clicking/ticking. It sounded like either a stuck relay or the flyback
arcing. The screen would occasionally flash and the current draw would
fluctuate between 2W and 17-25W until it eventually turned on and ran
fine.
Any theories? Should I distrust the VT320 or was it just something like a
stuck relay that's older than me? I grabbed pictures of the board but
they never seemed to actually get anywhere.
Electrolytic capacitors. Though that's a bit early for them to start
failing; VT320s aren't all that old, and I have yet to see a bad one.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
On Tue, 24 Dec 2013, Dave McGuire wrote:
On 12/24/2013 02:53 PM, Cory Smelosky wrote:
You're really making me wish I had a working PDP-11 at the moment. ;)
The 11/23+ has the busted crystal (albeit the entire board will be
replaced and I will hopefully repair the old one)
The 11/44 needs the PSU replaced (I need to go pick it up)
I lack the bootstrap module for the 11/03 (does anyone have RQDX3 bootcode
for RT-11 memorised?
That's easy to find, but don't look for it that way...look for an MSCP
bootstrap. They're not OS-specific, and not controller-specific if
they're MSCP. (which the RQDX3 is)
Ahhhh right. Thanks.
I'd need to boot XXDP, first however...by hand as I
have no working floppy drive for it, vtserver doesn't run well at 4800
baud on my working system, I'm stuck at 4800 baud due to lack of wire-wrap
tools, and a cap on the 11/03 (that is likely very important) blew out and
I don't have a spare on hand).
I have several caps on hand...but they're flat discs...not aluminium
electrolitics. :(
I'm a little impatient it seems. ;)
Yes, but it's an understandably frustrating situation.
Yup. :(
If I'm able to make my trip late this week (still working on that)
I'll be able to bring you a few things, at least.
Thanks! I'd love to have at least 1 working PDP-11. ;)
-Dave
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
On 12/24/2013 02:53 PM, Cory Smelosky wrote:
You're really making me wish I had a working PDP-11 at the moment. ;)
The 11/23+ has the busted crystal (albeit the entire board will be
replaced and I will hopefully repair the old one)
The 11/44 needs the PSU replaced (I need to go pick it up)
I lack the bootstrap module for the 11/03 (does anyone have RQDX3 bootcode
for RT-11 memorised?
That's easy to find, but don't look for it that way...look for an MSCP
bootstrap. They're not OS-specific, and not controller-specific if
they're MSCP. (which the RQDX3 is)
I'd need to boot XXDP, first however...by hand as I
have no working floppy drive for it, vtserver doesn't run well at 4800
baud on my working system, I'm stuck at 4800 baud due to lack of wire-wrap
tools, and a cap on the 11/03 (that is likely very important) blew out and
I don't have a spare on hand).
I have several caps on hand...but they're flat discs...not aluminium
electrolitics. :(
I'm a little impatient it seems. ;)
Yes, but it's an understandably frustrating situation.
If I'm able to make my trip late this week (still working on that)
I'll be able to bring you a few things, at least.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
On Tue, 24 Dec 2013, Dave McGuire wrote:
Understood; perfect...Thanks! I know very little about DELUAs. I
hope to survive netgen and see what I can make work. Thank you for your
help!
You're really making me wish I had a working PDP-11 at the moment. ;)
The 11/23+ has the busted crystal (albeit the entire board will be
replaced and I will hopefully repair the old one)
The 11/44 needs the PSU replaced (I need to go pick it up)
I lack the bootstrap module for the 11/03 (does anyone have RQDX3 bootcode
for RT-11 memorised? I'd need to boot XXDP, first however...by hand as I
have no working floppy drive for it, vtserver doesn't run well at 4800
baud on my working system, I'm stuck at 4800 baud due to lack of wire-wrap
tools, and a cap on the 11/03 (that is likely very important) blew out and
I don't have a spare on hand).
I have several caps on hand...but they're flat discs...not aluminium
electrolitics. :(
I'm a little impatient it seems. ;)
-Dave
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
On Tue, 24 Dec 2013, Dave McGuire wrote:
On 12/24/2013 12:27 PM, Cory Smelosky wrote:
DEUNA and DELUA are the same from a program point of view. They have different
microcode, but that is detected at runtime, and the right microcode is loaded.
The rest work the same. They use the same drivers, both in DECnet and in plain
RSX. (Yes, there is an ethernet driver for Unibus, that you can use if you
have the controller, but do not want DECnet.)
What're the differences between the two again? I have a DEUNA for my
11/44 I still need to get rolling.
The DELUA is one board, while the DEUNA is two, I can tell you that much.
Ahhhh. Right.
-Dave
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
On 12/24/2013 07:02 AM, Johnny Billquist wrote:
BRU64K also rings some bell, so I think I've seem that name as well.
I booted it. It seems BRU64K does not support MU: devices. The
"regular" BRUSYS does. I don't know what other differences there may be.
Hmm. I'd say that this would more be an issue of age. The TMSCP support
only came in 4.something, if I remember right.
Ok. That's certainly possible, and sounds likely...just an older one.
I wish I still had that tape, but sadly it was lost many years ago.
Distribution tape for 4.1? I thought you had 4.3 anyway, so what would
you use 4.1 for?
I wouldn't...but it was a pristine, original DEC RSX-11M distribution
tape, and those don't exactly grow on trees.
Oh. Ok.
There's also a sentimental attachment; it was mine when I was a teen,
given to me with my first PDP-11.
First question: I'd like to try to get DECnet running on this system,
if possible, to get it on HECnet. I've never run DECnet under RSX
before. I could put a DEUNA in the machine, but I am running short of
slots. I have a DELUA, but I don't recall sysgen asking about DELUAs.
Are they compatible at the driver level? Meaning, if I re-do my sysgen
to include a DEUNA driver, will that work with a DELUA?
DEUNA and DELUA are the same from a program point of view. They have
different microcode, but that is detected at runtime, and the right
microcode is loaded. The rest work the same. They use the same drivers,
both in DECnet and in plain RSX. (Yes, there is an ethernet driver for
Unibus, that you can use if you have the controller, but do not want
DECnet.)
Understood; perfect...Thanks! I know very little about DELUAs. I
hope to survive netgen and see what I can make work. Thank you for your
help!
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
