On Sun, Nov 1, 2015 at 12:18 PM, Michael Thompson <
michael.99.thomp...@gmail.com> wrote:
> >
> > Date: Sat, 31 Oct 2015 13:11:29 -0700
> > From: Charles Anthony
> > Subject: Front panels
> >
> > The front panel I want to build is for my DPS8-M (aka Honeywell 6180)
> > emulator.
> >
> >
> >
> htt
I don't understand the question; what kind of drives are you talking about?
These are fairly high performance hot-swappable SCSI server drives, 10,000 or
15,000 RPM with transfer rates of 160 or 320 MB/s, probably still in use in some
installations out there.
I scrapped the servers some time
Jay West and I are working on rescuing a minicomputer system in the
Phoenix area. The equipment will eventually be shipped to one of
us, but for right now we need to get it out of the building where it
currently resides, and into temporary storage. If we have to, we'll
use a u-store facility, but
On Sun, Nov 01, 2015, Mike Stein wrote:
> Just asking: Any interest in 80-pin SCA drives, Ultra 3 and Ultra320 in
> various capacities, both IBM and HP/Compaq 'caddies' ?
Are those the kind of drives that are appropriate for use at a
Renaissance Faire?
--
Eric Christopherson
Glen wrote...
On my cabinet the panel on the left is about 36 inches tall. It's also beige,
not brown, but it does have the hex key fastener at the top of the panel.
I am not sure, been too many years, but I think the cover on the front (which
went with the cabinet) was beige, and what I have co
On 10/30/2015 8:07 AM, Mattis Lind wrote:
> 2015-10-30 13:54 GMT+01:00 Jay Jaeger :
>
>> No, not looking for a reproduction. Just posted it in case it would help
>> folks with a possible RK11-C display panel concept.
>>
>
> Interesting. We also have a RF08 / RS08 combo. It came with two PDP-8/L
On Sun, Nov 1, 2015 at 4:08 PM, Jay West wrote:
> I've been away from DEC stuff far too long, so I don't remember what this is
> called - but I'll describe it.
>
> The beige dec cabinets (corp cab?) that are wider than about 19 inches...
> the ones where there is the "normal" 19" rack and then to
I've been away from DEC stuff far too long, so I don't remember what this is
called - but I'll describe it.
The beige dec cabinets (corp cab?) that are wider than about 19 inches...
the ones where there is the "normal" 19" rack and then to the left or the
right there is a top to bottom, front to b
Thanks for your efforts. They seem to be PDP11 types.
Has anybody had any luck with PDP -8 switches.
Has 3D printing been considered.?
Rod
On 01/11/15 22:12, Brent Hilpert wrote:
On 2015-Nov-01, at 7:21 AM, Noel Chiappa wrote:
I've ordered 10 7101J50-CQE2's from Online ... _Iff_ they fit int
On 2015-Nov-01, at 7:21 AM, Noel Chiappa wrote:
>> I've ordered 10 7101J50-CQE2's from Online ... _Iff_ they fit into the
>> old front panels, I'll let the list know.
>> ...
>> let's see if the 7101J50-C's fit, then we can discuss how to proceed.
>
> So the switches got here Friday, and alas, they
Brent Hilpert wrote:
One problem with a front panel on an S100 machine - or any
microprocessor-based machine - is getting access to the program
counter so you can tell it to start running at some arbitrary
address. The Altair/IMSAI panels resolved this with a hack, jamming a
jump instruction int
Just asking: Any interest in 80-pin SCA drives,
Ultra 3 and Ultra320 in various capacities, both
IBM and HP/Compaq 'caddies' ?
m
>
> Then you've not come across the ones in TK50Z desktop cases (and a few
> other things). They don't like operating without a minimum load,
No, probably not. Actually I may have one somewhere, but have never had to
repair it, so have never run it without a load.
Thanks for the warning though!
- Original Message -
From: "Michael Brutman"
To: "General Discussion: On-Topic and Off-Topic
Posts"
Sent: Sunday, November 01, 2015 12:35 AM
Subject: Re: VCF-Berlin, 2015
Hi Mike,
I'm not annoyed and I'm not blocking you from
viewing anything. Talk to
the owner of the VC forum - Er
On 01/11/2015 18:47, tony duell wrote:
I've yet to find a DEC PSU that fails destructively if not loaded, it
is more likely to just trip the overvoltaeg protection crowbar, shut
down, then try to restart and repeat the cycle, tweeting as it goes
Then you've not come across the ones in TK50Z des
>
> Date: Sat, 31 Oct 2015 13:11:29 -0700
> From: Charles Anthony
> Subject: Front panels
>
> The front panel I want to build is for my DPS8-M (aka Honeywell 6180)
> emulator.
>
>
> http://8bitaficionado.com/2010/09/22/multics-honeywell-6180-mainframe-panel-on-ebay/
>
>
> TIA,
>
> -- Charles
>
Th
[Chopper transistor]
> This one is a D905.
I assume that's a 2SD905 (the '2S' is often left off the package). From the data
I've seen that certainly could be used as a chopper transistor.
-tony
>
> You mentioned DEC PSUs, this one is actually made by ASTEC. I will use a
Firstly, every Astec PSU I've seen has been a swticher. They probably did make
linear PSUs, but not common...
Secodnly, it may have been made to a DEC design (rather than just a
specification).
I believe you replace
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of tony
duell
> Sent: 01 November 2015 18:54
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: RE: Testing H7864 (MicroVAX II) PSU With No Load
>
>
> > That said, it's possible that ther
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of tony
duell
> Sent: 01 November 2015 18:47
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: RE: Testing H7864 (MicroVAX II) PSU With No Load
>
> >
> > If it has a transistor at the pri
> That said, it's possible that there may be an auxiliary linear regulator in
> there. That's common
> for additional outputs with modest current needs, especially in older
> designs where the
> switching circuitry takes a lot of individual components. A TO-3 can isn't
> what I would expect
>
> If it has a transistor at the primary side, and a high frequency transformer,
> it's a switching supply.
> Those want a load, usually. Especially the older ones.
If there are large-ish electrolytics (100's of uF) with a voltage rating around
200V and no reason to
believe that there is a
> On Nov 1, 2015, at 12:37 PM, Robert Jarratt
> wrote:
>
> ...
> Hmmm Until your email I was pretty confident this was a switcher. But
> your description of a linear PSU seems to fit. I have posted three photos of
> the main board here: http://1drv.ms/1KQkTBp can you tell from that what kin
its a switcher.
On 11/1/2015 10:37 AM, Robert Jarratt wrote:
>
>> -Original Message-
>> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Paul
> Koning
>> Sent: 01 November 2015 16:52
>> To: General Discussion: On-Topic and Off-Topic Posts
>> Subject: Re: Testing H7864 (Mic
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Paul
Koning
> Sent: 01 November 2015 16:52
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: Testing H7864 (MicroVAX II) PSU With No Load
>
>
> > On Nov 1, 2015, at 7:12 AM, Rober
Hi Guys
Very interesting. So some did and some did not.
I have just had another thought. I have a whole slew of DEC systems that
have 80xx or Z80 processors.
and run CP/M . Now nobody is going to hack a desktop case about but
sneaking a flat cable out the back
or through a drive bla
> On Nov 1, 2015, at 7:12 AM, Robert Jarratt
> wrote:
>
> Some of you may recall I have a faulty H7864 PSU, which failed a while ago
> with a loud pop, but no obvious physical damage. I replaced the blown
> transistor (on the primary side of the large transformer), but when I power
> it on, th
I have tons of integer roms and spare keys. I am a veteran of that whole
business. :) I recall trying the flush method on my Rev 4 here but it turned
out to be fruitless on a lot of them. I think mine spent time in the Titanic's
purser's safe.
So value wise, could I go $1300-1800 without cau
> > > Maybe you can publish your schematic somwhere. It is much easier to
> > > come
> > up
> > > with ideas to pin point problems if we all view the same schematic.
> > > I
> > think it
> > > would be possible to identify the problem without comparing the two
> > > PSUs
> > at
> > > least in thi
Hang on that sounds familiar.
I worked at a company that sold Intel Development systems.
That sounds like one of them
Rod
On 01/11/15 14:18, tony duell wrote:
One problem with a front panel on an S100 machine - or any microprocessor-based
machine - is getting access to the program counter so y
> I've ordered 10 7101J50-CQE2's from Online ... _Iff_ they fit into the
> old front panels, I'll let the list know.
> ...
> let's see if the 7101J50-C's fit, then we can discuss how to proceed.
So the switches got here Friday, and alas, they are _not quite_ the right
thing.
They
2015-11-01 15:04 GMT+01:00 Robert Jarratt :
>
>
> > -Original Message-
> > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mattis
> Lind
> > Sent: 01 November 2015 12:46
> > To: General Discussion: On-Topic and Off-Topic Posts
> > Subject: Re: Testing H7864 (MicroVAX II) P
> One problem with a front panel on an S100 machine - or any
> microprocessor-based
> machine - is getting access to the program counter so you can tell it to
> start running
> at some arbitrary address. The Altair/IMSAI panels resolved this with a hack,
> jamming
> a jump instruction into th
> On Nov 1, 2015, at 3:13 AM, Brent Hilpert wrote:
>
>
> The other way round I think, the Altair and IMSAI were the only S100 machines
> I recall OTTOMH which had blinkenlight panels.
> The vast majority of them didn't. Northstar & Cromemco as you say, Compu-Pro,
> Vector-Graphic, Processor T
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mattis Lind
> Sent: 01 November 2015 12:46
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: Testing H7864 (MicroVAX II) PSU With No Load
>
> söndag 1 november 2015 skrev Robert Ja
söndag 1 november 2015 skrev Robert Jarratt :
> Some of you may recall I have a faulty H7864 PSU, which failed a while ago
> with a loud pop, but no obvious physical damage. I replaced the blown
> transistor (on the primary side of the large transformer), but when I power
> it on, the transistor
Some of you may recall I have a faulty H7864 PSU, which failed a while ago
with a loud pop, but no obvious physical damage. I replaced the blown
transistor (on the primary side of the large transformer), but when I power
it on, the transistor does not switch and there is no output, so clearly
ther
Hi Guys,
I got asked if we could do Lexan panels. I think it was for DG.
Yes my supplier does Lexan and can laser cut holes etc.
So if you need Lexan panels let me know.
The next batch of 8/e A & B will have the hole for the selector switch
and the one for the lock pre-drilled.
On 2015-Nov-01, at 12:27 AM, rod wrote:
> On 31/10/15 21:36, tony duell wrote:
>>> Hi Tony
>>> I seem to remember, certainly in OEM land there were dev.
>>> systems with front panels and production systems without.
>>> In other words the front panel was option and could be fitted.
>> S
>
> Yes much as I thought. What about S100 systems?
> Many did have lamps and switches but I can think of a couple that didn't .
> Northstar Horizon for one and Cromenco also.
If you have a machine that allows for other devices to become a bus master and
access memory and I/O devices (S100 does t
Hi Mike,
I'm not annoyed and I'm not blocking you from viewing anything. Talk to
the owner of the VC forum - Erik can help you, it is his forum and his call.
On Oct 30, 2015 9:30 AM, "Mike Stein" wrote:
> Hi Jack,
>
> Unfortunately I can't access the pictures on VCF
> because I apparently annoy
A PCjr with a front panel of blinking lights is just ridiculous. :)
On Oct 31, 2015 1:24 PM, "Tom Moss" wrote:
> I recall a minimalist front panel board for the PC jr of all things
>
> http://www.brutman.com/PCjr/pcjr_legacy.html
>
> I'd quite like to see a fully fledged panel for Q-BUS based PDP
Yes much as I thought. What about S100 systems?
Many did have lamps and switches but I can think of a couple that didn't .
Northstar Horizon for one and Cromenco also.
On 31/10/15 21:36, tony duell wrote:
Hi Tony
I seem to remember, certainly in OEM land there were dev.
systems wit
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