Hi there, long time viewer, first time poster. First an introduction:
My name is Joshua Stetson and I'm a software engineer by trade. My earliest
memories have always involved computers starting with a DOS based Zenith
8088 where I played some of my first games.
My first foray into "classic" comp
> Ideally I would like to find the following:
> 7009026 Cable which is two ribbon cables with a M933B or C flip chip on the
> other end
> The interface cable between the two drives: BC11A
> The terminator card M930
>
> At minimum, I'm pretty sure I'd only need the first cable to run one of the
>
Hello from a newbie to the list
I've just acquired 2 HP 382's with expanders. Have not had the time to look
inside them yet.
End goal is to set one up as an instrument controller i.e. using the built
in GPIB and potentially a 2nd GPIB card.
One thing I do not have is a display, keyboard and mous
I think I lucked out on the foam, as that was one of the first things I
checked. I had to go through and replace all the form in my 8/e chassis and
that was a pretty disgusting process. These drives were used in a
production environment up until a recently and seem really well maintained,
and from
Be very careful of the filter assembly, make sure the foam seals are not
deteriorated to where they can add to what ends up on the platter.
On Fri, Jan 22, 2016 at 2:00 PM, Joshua Stetson wrote:
> Hi there, long time viewer, first time poster. First an introduction:
>
> My name is Joshua Stets
On Fri, Jan 22, 2016 at 5:56 PM, drlegendre . wrote:
> Have you cut the appropriate jumper to designate that drive as device #9?
>
> On Fri, Jan 22, 2016 at 9:58 AM, Mike wrote:
>
> > Have any of you bought this item here is a link to the one I bought I
> > have a few questions on disk swapping.
>
> Also be careful of the air plenum, may of them are very fragile now and if
> it gets cracked you are in a hard spot. And also if the foam is compressing
> too much it will not make a good deal with the bottom of the pack.
>
This one looks like it's in really good condition, but I have read abo
Thank you, I won't ask on how you found this out, but I'll make sure to
have the terminator before running even a single drive! :)
On Fri, Jan 22, 2016 at 2:29 PM, tony duell wrote:
>
> > Ideally I would like to find the following:
> > 7009026 Cable which is two ribbon cables with a M933B or C f
Also be careful of the air plenum, may of them are very fragile now and if it
gets cracked you are in a hard spot. And also if the foam is compressing too
much it will not make a good deal with the bottom of the pack.
The other thing to be aware of is the emergency head retract batteries are
to
> On Jan 22, 2016, at 2:29 PM, tony duell wrote:
>
>>
>
> The M930 and BC11 should be easy to find, they are actually the same as the
> bits
> used on PDP11 Unibus connections.
>
I have had no end of problems with the *many* BC11A cables that I have (ie
they’re
bad cables). It’s the flex
The LogiCalc manual is here:
http://bitsavers.org/pdf/softwareProductsInternational/
anyone have the LogiQuest III manual to go with it?
Here is an advertisement for the SPI application suite that includes
Logiquest III:
http://i.imgur.com/k0D3wRX.png
LogiQuest III was a relational database fr
On 23/01/2016 00:23, Joshua Stetson wrote:
The other thing to be aware of is the emergency head retract batteries are
toast and should be replaced with a 3.6v NiCd pack, that way if the power
fails you don't trash a pack.
This is also on my list of things to do. Is there anyway to test this
f
No, but I have an HP 1670G, does the same trick. I also managed to install it
as a printer on Windows 98 using a GPIB ISA card and National Instruments DOS
drivers. Even had the choice of 14 7/8 inch fan fold paper in the printer
dialog! I'm working on a nicer HP only demo.
Marc
> On Jan 19, 20
>
> Speaking generally, I don't know that that will necessarily save one (in
> using a variac on a SMPS).
>
I for one think it is a good practice to start carefully. I like the idea
of bringing up the voltage over capacitors and other electronics in a
controlled manner. Electronics that had been s
>
>
>> Well. It depends if you read the schematics before you do so.
>>
>
> Assuming they're available for the particular PSU one is attempting to
> test.
>
>
Yes of course. If I have a PSU where I have doubts about the function and
there is no schematic I spend a few hours trace out the relevant p
>>>
>> I don't have a ESR meter or similar. It is not shorted at least and the
>> resistance is in the several mega ohm range when measuring in circuit. Are
>> they likely to go bad in a non catastrophic way?
>>
>
> They can. The translucent yellow Rifa (now owned by Kemet) class X/Y
> safety capac
> From: Mattis Lind
> I don't have an capacitance / ESR meter so I cannot check it.
If you do a lot of work with analog components (and it sounds like you do),
it's probably worth getting capacitance and ESR meters, they can be obtained
(new) on eBay for not that much. I have one of each
> From: Joshua Stetson
> Ideally I would like to find the following:
> ...
> The interface cable between the two drives: BC11A
> The terminator card M930
The former is going to be a pain. The latter are findable on eBay. If you
can't find one, drop me a line - I may have one I
> From: Guy Sotomayor
> To that end, I've made new "paddle" board that take 2 60pin ribbon
> cables.
Guy, this is fantastic news! I have previously speculated about doing this,
but it's still on the 'someday' list.
> I'll let folks know how they turn out (ie do they actually work
> >
http://www.ebay.com/itm/Beige-SD2IEC-Commodore-1541-Disk-Drive-Emulation-SD-Card-Reader-Vic20-C128-C64-/330919501256?hash=item4d0c56ddc8:g:7sUAAOxy0NtTEQKk
> > >
> > > Also having rtouble hooking up my original floppy drive as " LOAD "$"
> > > ,9,1
> >
>
> How are the jumper on the reak flopp
2016-01-23 13:54 GMT+01:00 Noel Chiappa :
> > From: Mattis Lind
>
> > I don't have an capacitance / ESR meter so I cannot check it.
>
> If you do a lot of work with analog components (and it sounds like you do),
> it's probably worth getting capacitance and ESR meters, they can be
> obtain
On 2016-01-22 4:52 PM, Pete Lancashire wrote:
Hello from a newbie to the list
I've just acquired 2 HP 382's with expanders. Have not had the time to look
inside them yet.
End goal is to set one up as an instrument controller i.e. using the built
in GPIB and potentially a 2nd GPIB card.
One thi
>
> Well. It depends if you read the schematics before you do so. In this case
> I powered the startup voltage from a 12 V bench supply. Normally the
> startup voltage comes from a small mains transformer and a 7812. Then I
> supplied the primary side voltage for the main switch transistor using a
> From: Mattis Lind
> What meter do you have and recommend?
My capacitance meter is a Uyigao UA6013L, and I'm quite happy with it; it
seems pretty reasonable build-quality. A number of people on eBay are selling
them, IIRC.
My ESR meter is, alas, literall nameless - I looked on both the
On 01/22/2016 06:26 PM, Tothwolf wrote:
The translucent yellow Rifa (now owned by Kemet) class X/Y safety
capacitors in particular have a 100% failure rate and are on my
replace-on-sight list. They usually begin to show visible signs of cracking
in their outer casing before they finally go out wi
On 1/23/2016 5:40 AM, Mattis Lind wrote:
This is a 0.0033 uF 1600VDC SPARAGUE capacitor. It looks nice and orange
and there are no signs of cracks whatsoever.
What is the likelihood of this being bad?
Not highly likely, but possible. Just
put another one in temporarily and see
if it solv
On 1/23/2016 9:22 AM, Mattis Lind wrote:
Yes. agree with you.I really should get oneWhat meter do you have and
recommend?
I use the BLUE ESR Meter of AnaTek Corp
(designed by Bob Parker). I've been
using it for several years and really
like it.
- J.
As already mentioned, you should start off looking at
http://www.hpmuseum.net for documentation and software for the HP
9000/382
I obtained an .ISO image of the HP-UX 9.0 installation CD-ROM there
along with HP BASIC 6.2 images, both stand alone BASIC and BASIC/UX.
There are currently no direct do
>
> It's a well-known fault, but has anyone ever known one fail and actually
> cause any damage (other than to itself)? AIUI, they're there to reduce
Not really. Maybe a blown fuse. I have had the live-earth capacitor in a filter
fail and trip the RCD in my consumer unit (meaning I was in the da
I am doing a bit of VAXELN programming and I am trying to get the Datagram
Service to only read packets of a certain EtherType, but unless I use
promiscuous mode, nothing is read. Here is the relevant code:
form.format = ELN$K_NI_PTT;
form.mux.ptt = 0x0360;
> The other thing to be aware of is the emergency head retract batteries are
> toast and should
> be replaced with a 3.6v NiCd pack, that way if the power fails you don't
> trash a pack.
I thought originally it was a 4.8V pack (4 cells). Over here a common cordless
telephone used the
same pac
>
> This one looks like it's in really good condition, but I have read about
> those issues. I'm just going to monitor it closely when initially mounting
> packs to verify the seals and integrity. As much as I hate to do so, I know
> it's common to run these without the top cover on for calibratio
First off, my bad - I thought the OP was wanting to change the device ID
(which is not the drive number, btw**) on a genuine 1541. I'd have no idea
how it's done with one of the SD-based drive emulators.
"Given the potential flakiness of 1541 drives, why make permanent hardware
changes when a basi
On Sat, Jan 23, 2016 at 2:13 AM, wrote:
> No, but I have an HP 1670G, does the same trick. I also managed to install it
> as a printer on Windows 98 using a GPIB ISA card and National Instruments DOS
> drivers. Even had the choice of 14 7/8 inch fan fold paper in the printer
> dialog! I'm work
>
>
> "Given the potential flakiness of 1541 drives, why make permanent hardware
> changes when a basic program allows you to assign the drive to whatever you
> want for the temporary need of the day?"
>
> Though I'm not entirely sure it exists, any "potential flakiness" is
> probably a very good r
On 1/23/2016 2:18 PM, drlegendre . wrote:
First off, my bad - I thought the OP was wanting to change the device ID
(which is not the drive number, btw**) on a genuine 1541. I'd have no idea
how it's done with one of the SD-based drive emulators.
Google is still a friend:
https://www.google.com/
Hello readers,
I cleaned the first of my RM03 drives today. The drive is quite clean
even after several years of no attention. Just a few spiders webs and
tiny dead spiders, and little dust. I picked up this drive in Turin
Italy, together with Edward several years ago. I cannot remember doing
it,
On Sat, Jan 23, 2016 at 4:12 PM, Jim Brain wrote:
> On 1/23/2016 2:18 PM, drlegendre . wrote:
>
>> First off, my bad - I thought the OP was wanting to change the device ID
>> (which is not the drive number, btw**) on a genuine 1541. I'd have no idea
>> how it's done with one of the SD-based drive
On Fri, Jan 22, 2016 at 4:00 PM, Joshua Stetson wrote:
>
> Over the past couple of years, I've managed to work back even further,
> piecing together a PDP-8/e system from various parts collected over the
> past 4 years and now I have a fully working 8/e including 32kw of core and
> an RK05E card s
On 01/23/2016 01:26 AM, Tothwolf wrote:
They can. The translucent yellow Rifa (now owned by Kemet) class X/Y
safety capacitors in particular have a 100% failure rate and are on my
replace-on-sight list. They usually begin to show visible signs of
cracking in their outer casing before they fin
On 01/23/2016 02:40 PM, Pontus wrote:
All I could find were new similar Kemet capacitors. Do you know if newer
Kemet suffer from the same problem and I will regret buying them?
I usually replace the Rifa capacitors with equivalent polyester safety
caps (X or Y rated). Kemets are most common
On Sat, Jan 23, 2016, Jim Brain wrote:
> On 1/23/2016 2:18 PM, drlegendre . wrote:
> >First off, my bad - I thought the OP was wanting to change the device ID
> >(which is not the drive number, btw**) on a genuine 1541. I'd have no idea
> >how it's done with one of the SD-based drive emulators.
> G
On 1/23/2016 6:28 PM, Eric Christopherson wrote:
On Sat, Jan 23, 2016, Jim Brain wrote:
On 1/23/2016 2:18 PM, drlegendre . wrote:
First off, my bad - I thought the OP was wanting to change the device ID
(which is not the drive number, btw**) on a genuine 1541. I'd have no idea
how it's done wit
Strange. Here's one of mine. No lid issues!
https://www.youtube.com/watch?v=xcc5fJOgp7A
Mike
On Sun, Jan 24, 2016 at 10:47 AM, Henk Gooijen wrote:
> Hello readers,
> I cleaned the first of my RM03 drives today. The drive is quite clean
> even after several years of no attention. Just a few spid
" I am saying don't make a permanent hardware change to a 1541 that
does not have the switches unless you really want it to be permanent
because there is a software method of assigning drives that is good enough
most of the time. BUT if you must make it permanent and you don't have the
external sw
Pardon the quick re-post..
FYI, you don't actually need a BASIC program to change a drive ID. This
'one-liner' will do the job just fine:
OPEN 15,8,15:PRINT#15,"M-W";CHR$(119);CHR$(0);CHR$(2);CHR$(*device number*
+32)+CHR$(*device numver*+64):CLOSE 15
Again, this change will not persist between
On 1/23/2016 7:15 PM, drlegendre . wrote:
" I am saying don't make a permanent hardware change to a 1541 that
does not have the switches unless you really want it to be permanent
because there is a software method of assigning drives that is good enough
most of the time. BUT if you must make it
Jim,
That's an interesting and colorful narrative, and much of it makes good
sense - in the giddy days of the 1980s home computer market, and for CBM in
particular. But speaking as one who was fairly hot & heavy into the VIC-20
(and then almost immediately the C-64), this 'drive ID' issue has
more
On Sat, 23 Jan 2016, Chuck Guzis wrote:
On 01/23/2016 02:40 PM, Pontus wrote:
All I could find were new similar Kemet capacitors. Do you know if
newer Kemet suffer from the same problem and I will regret buying them?
I usually replace the Rifa capacitors with equivalent polyester safety
caps
On Sat, Jan 23, 2016, drlegendre . wrote:
> " I am saying don't make a permanent hardware change to a 1541 that
> does not have the switches unless you really want it to be permanent
> because there is a software method of assigning drives that is good enough
> most of the time. BUT if you must ma
On Sat, 23 Jan 2016, Mattis Lind wrote:
I don't have a ESR meter or similar. It is not shorted at least and
the resistance is in the several mega ohm range when measuring in
circuit. Are they likely to go bad in a non catastrophic way?
They can. The translucent yellow Rifa (now owned by Kemet
On Sat, Jan 23, 2016, Jim Brain wrote:
> On 1/23/2016 7:15 PM, drlegendre . wrote:
> >" I am saying don't make a permanent hardware change to a 1541 that
> >does not have the switches unless you really want it to be permanent
> >because there is a software method of assigning drives that is good en
On Sat, 23 Jan 2016, tony duell wrote:
Incidentally, some machines have those sealed metal cans containing
filter capacitors, inductors and sometimes discharge resistors [2]. Has
anyone ever had the capacitors in one of those fail?
Actually, yes. I had one fail in one of my scopes. I don't re
On Sat, 23 Jan 2016, Mattis Lind wrote:
2016-01-23 13:54 GMT+01:00 Noel Chiappa :
If you do a lot of work with analog components (and it sounds like you
do), it's probably worth getting capacitance and ESR meters, they can
be obtained (new) on eBay for not that much. I have one of each that I
On 1/23/2016 8:58 PM, Eric Christopherson wrote:
On Sat, Jan 23, 2016, Jim Brain wrote:
On 1/23/2016 7:15 PM, drlegendre . wrote:
" I am saying don't make a permanent hardware change to a 1541 that
does not have the switches unless you really want it to be permanent
because there is a software
I can't say much about the other brands, but so far as Apple was concerned,
you're exactly correct. The Apple Disk II drives were quite 'dumb' and
required a disk controller card (installed in a slot, on the motherboard)
plus a software DOS (3.2, 3.3, etc.) loaded at startup from a bootable
disc.
On Sat, 23 Jan 2016, Jules Richardson wrote:
On 01/22/2016 06:26 PM, Tothwolf wrote:
The translucent yellow Rifa (now owned by Kemet) class X/Y safety
capacitors in particular have a 100% failure rate and are on my
replace-on-sight list. They usually begin to show visible signs of
cracking in
On Wed, 30 Dec 2015, Oliver Lehmann wrote:
> Command 91h did the trick. Issueing this once before any
> read/write commands makes the drive finally work!
FYI, this is what ATA-2 has to say about this command:
"Note: Previous ATA specifications were unclear about the error conditions
that this
On Sun, 24 Jan 2016, Maciej W. Rozycki wrote:
> "Note: Previous ATA specifications were unclear about the error conditions
> that this command may indicate. Some implementations do not indicate any
> errors for this command even when the command fails. However, most of
> these implementations
- Original Message -
From: "Jim Brain"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Saturday, January 23, 2016 10:28 PM
Subject: Re: SD Card disk drive for C-64?
> On 1/23/2016 8:58 PM, Eric Christopherson wrote:
>> On Sat, Jan 23, 2016, Jim Brain wrote:
... snippage
- Original Message -
From: "Jim Brain"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Thursday, January 21, 2016 1:11 AM
Subject: Re: C64 system cost?
> On 1/20/2016 1:37 PM, Pete Rittwage wrote:
>> That is an extremely good price... However, the site is very old and he
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