Re: Data General Nova 3 and 6045 Drive Questions

> On Jun 12, 2016, at 20:55, Bruce Ray wrote: > > G'day Mark - > > Brief notes... Thanks! > 4) 4075 TTY baudrate pretty easy to check; usually 4800 or 9600 baud, 7 data, > even parity, 1 stop bit. I determined earlier today that I had merely had a brain fart regarding

Re: Data General Nova 3 and 6045 Drive Questions

G'day Mark - Brief notes... 1) DG part numbers are 005-xx-yy; 107-xx-yy numbers are circuit board artwork numbers. Unfortunately, there is no standard cross-reference between the two. Briefly, the part number is the primary reference to be used because a single 107-xx-yy

Re: Data General Nova object formats

On 2016-06-12 11:02 PM, jwsmobile wrote: On 6/12/2016 5:39 PM, Mark J. Blair wrote: Ok, I've found a description of the .rb format in manual 093-81-02 for the Macro Assembler, and a description of the .ab format in manual 093-03-06 for the Binary Loader. Now, off to dig into Toby's

Re: Data General Nova object formats

> On Jun 12, 2016, at 20:02, jwsmobile wrote: > Is there a linker included in his toolchain? That is where you need to look. > If it is designed to run for an OS, or with an smart loader, it will take in > object modules and emit them with relocatable addressing resolution

Re: Data General Nova object formats

On 6/12/2016 5:39 PM, Mark J. Blair wrote: Ok, I've found a description of the .rb format in manual 093-81-02 for the Macro Assembler, and a description of the .ab format in manual 093-03-06 for the Binary Loader. Now, off to dig into Toby's assembler some more to figure out how to

Re: Strange ICs on eBay

They are apha-numeric LED displays. They seem to have extra pins the my be decimal points. Nothing otherwise unusual. Dwight From: cctalk on behalf of Chris Pye Sent: Sunday, June 12, 2016 5:04:26 PM To:

Re: Data General Nova object formats

Ok, I've found a description of the .rb format in manual 093-81-02 for the Macro Assembler, and a description of the .ab format in manual 093-03-06 for the Binary Loader. Now, off to dig into Toby's assembler some more to figure out how to make it emit absolute binary! -- Mark J.

Data General Nova object formats

I have been able to use my Data General Nova 3's Program Load function to load in the 091-36-01 self-loading bootstrap program, and then use that bootstrap to load in absolute binary tape images from *.ab files, all over the TTI channel from a terminal emulator. Now, I'm trying to hack

Re: Strange ICs on eBay

> On 11 Jun 2016, at 11:16 am, Ali Fahimi, M.D. > wrote: > > Just wondering if anyone knows what these chips are for/from/etc. > http://www.ebay.com/itm/152124208945 > Interesting look to them. I would say EPROM but the magnifying window is > weird... > -Ali

Re: VCF - can't get in again.

On 12/06/2016 20:36, Evan Koblentz wrote: Would you believe it. VCF forum is up to its old tricks again. Same old thing. Can't log in Last time I got told I had registered when I had not. Just like the banks your PIN number was used so it must have been you. Our software can never be at

Re: UNIBUS extension card/cable sets

So I previously: http://www.classiccmp.org/pipermail/cctech/2015-June/006953.html wrote: >> I see 'three' different kinds of 'UNIBUS to cables' cards listed: >> M9014 UNIBUS to 3 H854s >> M9015 3 H854s to UNIBUS >> M9031 UNIBUS to 3 3M cables for 11/74 >>

Re: Accessing a TK50 or TK70 from RT

On 12/06/2016 19:18, j...@cimmeri.com wrote: On 6/12/2016 12:00 PM, Rod Smallwood wrote: On 12/06/2016 16:19, Jerome H. Fine wrote: >Rod Smallwood wrote: Firstly one important fact that I did not know. If you bulk erase a TK50 you can turn it into a TK70 tape with an INIT.

Re: EVOX RIFA X2 capacitors

On 12/06/2016 20:31, "tony duell" wrote: > They turn up everywhere. A couple of months back I was upgrading a TRS-80 > Model 4 for a friend. It had a couple of said capacitors which filled my > Large Machine Room with magic smoke... Also found them in HP machines. >

Re: EVOX RIFA X2 capacitors

Those Rifa paper-dielectric caps are very common in the Astec power supplies that I have found in most of my TRS-80 gear. After having one cook off on me in my Model 12, I replace them all on sight with Panasonic safety-rated poly film caps. My hypothesis is that moisture gets into the paper

Re: Data General Nova 3 and 6045 Drive Questions

Disk testing update: I have the controller in slot 11 still, and the drive interface cable is connected to the edge paddle that appears to be wire-wrapped to slot 11. I haven't tried it in slot 10 using edge connector P4 yet, because I think I might need to fiddle with the two blue wires (bus

Re: VCF - can't get in again.

Would you believe it. VCF forum is up to its old tricks again. Same old thing. Can't log in Last time I got told I had registered when I had not. Just like the banks your PIN number was used so it must have been you. Our software can never be at fault. The user is always wrong. What else

RE: EVOX RIFA X2 capacitors

> > > > The ones I have seen are metalised paper and do have a deserved > > reputation for being antisocial. They split open and emit clouds of > > evil-smelling magic smoke. > > Yep. Famous here in the UK for being used in every single Acorn BBC Micro > PSU (also ASTEC) plus a lot of monitors

Re: EVOX RIFA X2 capacitors

On 12/06/2016 19:49, "tony duell" wrote: > >> Explode? Those are ceramics caps, right? Are these the line inlet > > The ones I have seen are metalised paper and do have a deserved > reputation for being antisocial. They split open and emit clouds of > evil-smelling

Re: am8052

On 06/11/2016 07:04 PM, emanuel stiebler wrote: > Hi all, anybody know, which system used it? It is a 1986 CRT > controller, which was pretty fancy back then. But never saw actual > hardware with it ... > The am8052 isn't a general-purpose CRT controller, but an *alphanumeric* one; that is, it

Re: EVOX RIFA X2 capacitors

On 06/12/2016 10:38 AM, Adrian Graham wrote: > Got a couple of Apple ][s that were rescued from a steelworks > outbuilding and as usual they have ASTEC power supplies with .1uF and > .01uf RIFA look-at-me-and-I'll-explode caps in and I'm running out of > spares. > > What's the current considered

RE: EVOX RIFA X2 capacitors

> Explode? Those are ceramics caps, right? Are these the line inlet The ones I have seen are metalised paper and do have a deserved reputation for being antisocial. They split open and emit clouds of evil-smelling magic smoke. > filter caps, or later on? For line inlet, you need line rated

Re: EVOX RIFA X2 capacitors

> On Jun 12, 2016, at 1:38 PM, Adrian Graham > wrote: > > Hi folks, > > Got a couple of Apple ][s that were rescued from a steelworks outbuilding > and as usual they have ASTEC power supplies with .1uF and .01uf RIFA > look-at-me-and-I'll-explode caps in and I'm

Re: Accessing a TK50 or TK70 from RT

On 6/12/2016 12:00 PM, Rod Smallwood wrote: On 12/06/2016 16:19, Jerome H. Fine wrote: >Rod Smallwood wrote: Firstly one important fact that I did not know. If you bulk erase a TK50 you can turn it into a TK70 tape with an INIT. Thank you I did not know that. A bulk

EVOX RIFA X2 capacitors

Hi folks, Got a couple of Apple ][s that were rescued from a steelworks outbuilding and as usual they have ASTEC power supplies with .1uF and .01uf RIFA look-at-me-and-I'll-explode caps in and I'm running out of spares. What's the current considered replacement for these? There seems to be a

Re: Accessing a TK50 or TK70 from RT

On 12/06/2016 16:19, Jerome H. Fine wrote: >Rod Smallwood wrote: Firstly one important fact that I did not know. If you bulk erase a TK50 you can turn it into a TK70 tape with an INIT. Thank you I did not know that. A bulk erase was the first thing that seemed to be the

Re: Accessing a TK50 or TK70 from RT

>Rod Smallwood wrote: Firstly one important fact that I did not know. If you bulk erase a TK50 you can turn it into a TK70 tape with an INIT. Thank you I did not know that. A bulk erase was the first thing that seemed to be the solution since I had, fortunately, found a blank

Re: Accessing a TK50 or TK70 from RT

On 12/06/2016 13:54, Jerome H. Fine wrote: >Adrian Graham wrote: On 12/06/2016 12:15, "Rod Smallwood" wrote: Nearly there I think. I have loads of TK50 tapes to format. I'm pretty sure the TK70 can only read TK50 tapes and not write to them... Thanks

Re: UNIBUS M9312 ROMS (Don North)

> > From: Don North > Subject: Re: UNIBUS M9312 ROMS (Don North) > Message-ID: <498c12dd-437a-31ce-0a04-4602e50f6...@mindspring.com> > > There is a three PROM set 23-86[234]A9 for device code XM which is DDCMP > boot > over a DMC11/DMR11. Those PROMs are available and on my

Re: Accessing a TK50 or TK70 from RT

>Adrian Graham wrote: On 12/06/2016 12:15, "Rod Smallwood" wrote: Nearly there I think. I have loads of TK50 tapes to format. I'm pretty sure the TK70 can only read TK50 tapes and not write to them... Thanks Graham Now that sounds highly

Using 1MB M8750 cards in a PDP-11/70

So there was some prior discussion on the list about using the later 1MB M8750 cards (used in the VAX-11/750, /730, etc) in the MK11 memory of a PDP-11/70: http://www.classiccmp.org/pipermail/cctech/2015-March/003598.html However, that seems to require some kludgery in the MK11 (sending 4

Re: Accessing a TK50 or TK70 from RT

On 12/06/2016 12:15, "Rod Smallwood" wrote: >>> Nearly there I think. I have loads of TK50 tapes to format. >> I'm pretty sure the TK70 can only read TK50 tapes and not write to them... >> > Thanks Graham > > Now that sounds highly likely. Does the TK70

Re: Accessing a TK50 or TK70 from RT

On 12/06/2016 11:31, Adrian Graham wrote: On 12/06/2016 11:00, "Rod Smallwood" wrote: OK we are moving forward. Drive is TK70 Interface card is a TQK70 controller The cart is a TK50 as that's all I have. The write protect slide is to write protect off. Cart

Re: Accessing a TK50 or TK70 from RT

On 12/06/2016 11:00, "Rod Smallwood" wrote: > OK we are moving forward. > > Drive is TK70 > Interface card is a TQK70 controller > The cart is a TK50 as that's all I have. > The write protect slide is to write protect off. > Cart loads normally and activity light

Re: Accessing a TK50 or TK70 from RT

On 12/06/2016 04:01, Jerome H. Fine wrote: >Jerry Weiss wrote: On Jun 11, 2016, at 10:14 AM, Jerome H. Fine wrote: Rod Smallwood wrote: I have had some success in fixing a couple of TK tape drives. They now load and unload every time you press the button. SFSG

Re: Data General Nova 3 and 6045 Drive Questions

> On Jun 12, 2016, at 00:44, Henk Gooijen wrote: > > Just like Mark, it's about time to spend some time on my NOVA3. > I will be following this with interest! Yay! > Were all bulbs on the front panel of your NOVA intact Mark? > Or did/do you also have dead lamps?

Re: Data General Nova 3 and 6045 Drive Questions

-Oorspronkelijk bericht- From: Mark J. Blair Sent: Sunday, June 12, 2016 8:32 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Data General Nova 3 and 6045 Drive Questions Aha! Now I remember. That Cassette I/O card is mostly unpopulated, and I think it's just

Re: TI Professional Computer (TIPC) Service Manual?

On 6/11/16 11:06 AM, David Gesswein wrote: > On Fri, Jun 10, 2016 at 08:08:41PM -0700, Al Kossow wrote: >> >> I'm working on post-processing >> 2241092-0001_Business-Pro_Professional_Computer_Hardware_Technical_Reference_Apr86 >> right now.. >> > Is this the later 286 model? yes

Re: TI Professional Computer (TIPC) Service Manual?

On Fri, Jun 10, 2016 at 08:08:41PM -0700, Al Kossow wrote: > > I'm working on post-processing > 2241092-0001_Business-Pro_Professional_Computer_Hardware_Technical_Reference_Apr86 > right now.. > Is this the later 286 model? Mine is the 8088.

Re: Anyone have MULTOS/8 running on SimH?

On 6/10/2016 5:24 PM, Josh Dersch wrote: I'm investigating getting MULTOS/8 running on the 8/e here at the museum and I thought I'd start by getting acquainted with it on SIMH. That that to be most misuse of computing power I can think of ,if have a REAL TTY connected to the system. Good luck

Re: Strange ICs on eBay

On 6/11/2016 4:03 AM, Peter Corlett wrote: On Fri, Jun 10, 2016 at 09:16:37PM -0400, Ali Fahimi, M.D. wrote: Just wondering if anyone knows what these chips are for/from/etc. http://www.ebay.com/itm/152124208945 Interesting look to them. I would say EPROM but the magnifying window is weird...