Re: Revive 11/34

> On 12/8/2017 3:50 PM, Jerry Weiss wrote: >> On Dec 8, 2017, at 2:25 PM, John Welch via cctech >> wrote: >> >>> I am reviving an 11/34. Cards are: >>> >>> Back/Fans [M8266] Front of machine where keypad is. >>> [M8265] >>> [M9312] [M7859] >>> [M77

Re: Revive 11/34

On Dec 8, 2017, at 2:25 PM, John Welch via cctech wrote: > > I am reviving an 11/34. Cards are: > > Back/Fans [M8266] Front of machine where keypad is. > > [M8265] > > [M9312] [M7859] > > [M7762] > > [OPEN] [M7860] > >

RE: Revive 11/34

Van: John Welch via cctech Verzonden: vrijdag 8 december 2017 21:25 Aan: cct...@classiccmp.org Onderwerp: Revive 11/34 I am reviving an 11/34. Cards are: Back/Fans [M8266] Front of machine where keypad is. [M8265--

Re: IBM 3270 controller emulation

It might be worthwhile to look at the source for hercules (370, 390, z/series) emulator since that includes support for 3270 terminals through tn3270. It’s pretty good since I can use actual 327x CUT terminals connected to a 3174 controller which connects to hercules emulating the mainframe. T

IBM 3270 controller emulation

I am trying to wire 3270 support into the DPS8/M emulator. Multics supports 3270 via a bisync connection to the 3270 controller. Multics sends commands to the Front End Network processor, which (originally) passed the commands down the bisync line to the 3270. I have a running Multics and running

Re: RX02 Difficulties

On 12/8/2017 4:34 PM, Charles Anthony via cctalk wrote: On Fri, Dec 8, 2017 at 4:30 PM, Jerry Weiss via cctalk < cctalk@classiccmp.org> wrote: On Dec 8, 2017, at 5:17 PM, Aaron Jackson wrote: = 3) Try and contrast to the other drive as previously covered. This will help rule out a few thing

Re: RX02 Difficulties

On Fri, Dec 8, 2017 at 4:30 PM, Jerry Weiss via cctalk < cctalk@classiccmp.org> wrote: > On Dec 8, 2017, at 5:17 PM, Aaron Jackson wrote: > > > = > 3) Try and contrast to the other drive as previously covered. > > This will help rule out a few things and provide some better direction. > > I know

Re: RX02 Difficulties

On Dec 8, 2017, at 5:17 PM, Aaron Jackson wrote: > >>> On Dec 8, 2017, at 12:53 PM, Aaron Jackson via cctalk >>> wrote: >>> On Fri, Dec 8, 2017 at 3:03 PM, Aaron Jackson wrote: > > Manual says it should be S1=off, S2=on for RX211 and RXV21 In the photo, I think

Re: Types of corrosion on computers

I've seen this a few times. I never knew exactly what it was but it usually comes off but there is staining left over. Here are a couple of explanations from Google. *White rust* is a *white* powdery deposit formed from a natural *corrosion* process that can occur on any new zinc coated steel pr

Re: RX02 Difficulties

>> On Dec 8, 2017, at 12:53 PM, Aaron Jackson via cctalk >> wrote: >> >>> On Fri, Dec 8, 2017 at 3:03 PM, Aaron Jackson >>> wrote: Manual says it should be S1=off, S2=on for RX211 and RXV21 >>> >>> In the photo, I think S1 is on and S2 is off. Check them with an >>> ohmmeter if in

Re: Types of corrosion on computers

water get sprayed on it? On Fri, Dec 8, 2017 at 5:06 PM, dwight via cctalk wrote: > Could be the zinc plating? > > Dwight > > > > From: cctalk on behalf of Sam O'nella via > cctalk > Sent: Friday, December 8, 2017 2:46:40 PM > To: General Discussion: On-Topic

Re: Types of corrosion on computers

Could be the zinc plating? Dwight From: cctalk on behalf of Sam O'nella via cctalk Sent: Friday, December 8, 2017 2:46:40 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Types of corrosion on computers I've seen rust and dust, but there's an

Types of corrosion on computers

I've seen rust and dust, but there's an old vaxstation II at Goodwill Computers in Austin right now (very cheap, anyone welcome to buy it and get it off my mind) but as most things, I checked out the back and see some circles of white corrosion on the back where the cards? are contacting the case.

Re: RX02 Difficulties

> On Dec 8, 2017, at 12:53 PM, Aaron Jackson via cctalk > wrote: > >> On Fri, Dec 8, 2017 at 3:03 PM, Aaron Jackson >> wrote: >>> >>> Manual says it should be S1=off, S2=on for RX211 and RXV21 >> >> In the photo, I think S1 is on and S2 is off. Check them with an >> ohmmeter if in doubt! >>

Re: RX02 Difficulties

On 12/8/2017 2:13 PM, Aaron Jackson via cctalk wrote: I wonder if there's a problem with the floppy you are using? Remember, the RX0x drives can't hard reformat the floppies (as in, write the sector headers), so if the floopy has a problem, you can't fix it with the RX02. Noel Possi

Re: RX02 Difficulties

> > From: Aaron Jackson > > > Most of the tests now look something like this: > > ... > > SECTOR ADDRESS ERROR > > EXPECTED SECTOR=18. > > TARGET SECTOR=17. > > I wonder if there's a problem with the floppy you are using? > > Remember, the RX0x drives can't hard refor

Re: RX02 Difficulties

> From: Aaron Jackson > Most of the tests now look something like this: > ... > SECTOR ADDRESS ERROR > EXPECTED SECTOR=18. > TARGET SECTOR=17. I wonder if there's a problem with the floppy you are using? Remember, the RX0x drives can't hard reformat the floppies (a

Re: RX02 Difficulties

> On Fri, Dec 8, 2017 at 3:03 PM, Aaron Jackson wrote: >> >> Manual says it should be S1=off, S2=on for RX211 and RXV21 > > In the photo, I think S1 is on and S2 is off. Check them with an > ohmmeter if in doubt! > > -tony Yes - you are right. I switched them back to how they were when I got the

Re: RX02 Difficulties

On 12/08/2017 09:45 AM, Aaron Jackson via cctalk wrote: > Hi everyone, > > I originally posted this on VCFed (which was new to me) but the > moderation queue has had me waiting for about 3 days, so I thought I'd > ask here as well, the usual of gurus. :) > > I was recently sent an RXV21 controller

Re: RX02 Difficulties

On Fri, Dec 8, 2017 at 3:03 PM, Aaron Jackson wrote: > > Manual says it should be S1=off, S2=on for RX211 and RXV21 In the photo, I think S1 is on and S2 is off. Check them with an ohmmeter if in doubt! -tony

Re: RX02 Difficulties

> On Fri, Dec 8, 2017 at 2:45 PM, Aaron Jackson via cctalk > wrote: > >> - Strapped RX01 - I don't know what this means >> >> - PDP8 - eh? > > No idea as to the fault (heck, it's not in front of me with a logic analyser > to hand), but I think I can explain that. > > There is a pair of DIP switche

Re: RX02 Difficulties

On Fri, Dec 8, 2017 at 2:45 PM, Aaron Jackson via cctalk wrote: > - Strapped RX01 - I don't know what this means > > - PDP8 - eh? No idea as to the fault (heck, it's not in front of me with a logic analyser to hand), but I think I can explain that. There is a pair of DIP switches on the control

RX02 Difficulties

Hi everyone, I originally posted this on VCFed (which was new to me) but the moderation queue has had me waiting for about 3 days, so I thought I'd ask here as well, the usual of gurus. :) I was recently sent an RXV21 controller so I could test out my RX02 drive. When I power up the PDP-11 or res

Tandy 1000 keyboard keys

Greetings from Brazil :) Just got a Tandy 1000 SX. Nice shape, but it is missing the ESC and F10 keys. Would someone have a complete assembly (switch + caps) to sell, shipping to Brazil incuided? I'd also be interested in the monitor cable and one or two joysticks. Thanks! Alexandre http://t