Re: IBM 3480 DEC TKZ60 inquiry

On 12/17/2017 10:04 PM, Chuck Guzis via cctalk wrote: Hi Folks, We've got a Canadian customer with what appears to be an IBM 3480 cartridge that he'd like to get the data from. We don't get nearly enough request for these IBM carts to make owning a unit a viable proposition. I understand

IBM 3480 DEC TKZ60 inquiry

Hi Folks, We've got a Canadian customer with what appears to be an IBM 3480 cartridge that he'd like to get the data from. We don't get nearly enough request for these IBM carts to make owning a unit a viable proposition. I understand that the 3480 format was supported by a wide range of

RE: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

AFAIK these are rebadged Japanese (probably NPL) controller and drives compatible with the IBM 3370 series. The 3693-2 is a controller bundled with two drives while the 3690-2 is just two drives, other than skins just like the two in the 3693. They are FBA as opposed to CKD They likely

Re: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

To let folks now, I’ve acquired the drives and am currently making arrangement for one of the local collectors to pick them up if I’m unable to and store them until I’m able to get them to my place. So they’ve been saved and I’m looking forward to being able to attach them to my 4331. TTFN -

Re: offering: computer, A/V and optical equipment, plus books and more, to be cleared out around mid-December

I wrote: > Lately I've added more information, including part numbers and pictures here and there. Now I've also listed all of the (e.g.) PCI/-X adapters I could find, some of which are perhaps of use to people running OpenVMS, Tru64 UNIX, IRIX and other platforms. -

Re: BT139-600G Triac Equivalent

On 2017-Dec-17, at 3:23 AM, Rob Jarratt via cctalk wrote: > I have a suspicion that this component may be faulty on the input side of my > H7826 PSU. A little tester I have does not recognise it, it is possible that > the currents it uses are too low for this particular triac, but I am not > sure.

Re: RL02 weirdness

> On 12/17/17 9:04 AM, Aaron Jackson via cctalk wrote: >> I unloaded very quickly but I think the damage is done. >> > > I KNOW the damage is done. > > NEVER attempt to load a pack if you haven't inspected it AND the heads > first. The pack was cleaned with lint-free kimwipes and 99.9% isopropyl

Re: RL02 weirdness

On 12/17/17 9:04 AM, Aaron Jackson via cctalk wrote: > I unloaded very quickly but I think the damage is done. > I KNOW the damage is done. NEVER attempt to load a pack if you haven't inspected it AND the heads first. Was this combination ever known to work? You now need to throw that pack

Help with RSX/PDP11

It is time to ask for help.  I have forgotton more than I ever knew about using RSX.  Anyway, using the wonderful PDP11GUI I have imaged an RL02 pack to my PC.  I have downloaded a running RSX11m image. I want to look at my imaged disk to see how it looks. Using SIMH I did the following

RE: BT139-600G Triac Equivalent

Thanks Peter, Now that you mention it, I have heard that these triacs get used in the auto voltage detection. I was about to reverse engineer the schematic and that is now my next step. I would still like to identify possible replacements though in case I ever need spares for this part. Regards

Re: RL02 weirdness

>> -Original Message- >> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Aaron >> Jackson via cctalk >> Sent: 17 December 2017 17:56 >> To: Aaron Jackson ; General Discussion: On-Topic >> and Off-Topic Posts >> Subject: Re:

RE: RL02 weirdness

> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Aaron > Jackson via cctalk > Sent: 17 December 2017 17:56 > To: Aaron Jackson ; General Discussion: On-Topic > and Off-Topic Posts > Subject: Re: RL02

Re: RL02 weirdness

>> I wonder if you fell into the 'trap for the unwary' here. The heads are >> named by >> the direction they face. So the upper head, nearest the top of the drive, is >> the 'down' had as it faces down onto the platter. Similarly the lower >> head is the >> 'up' head. Yes, it confused me at

Re: RL02 weirdness

> On Sun, Dec 17, 2017 at 5:04 PM, Aaron Jackson via cctalk > wrote: >> Now that I have my RX02 drive working I have started to take a look at >> the RL02 drives again. I hooked a scope up to the sector transducer and >> sector timing test points, and they look nicely

Re: RL02 weirdness

On Sun, Dec 17, 2017 at 5:04 PM, Aaron Jackson via cctalk wrote: > Now that I have my RX02 drive working I have started to take a look at > the RL02 drives again. I hooked a scope up to the sector transducer and > sector timing test points, and they look nicely aligned. So

Re: RL02 weirdness

>> Does anyone understand what might have happened? > Simple the heads are designed to fly and have a shape suited for that. > Flip them over and they are wrong shape, they don't fly, they dig in > oops! Yes I understand that, but why didn't it damage my platter when they were connected

Re: RL02 weirdness

On 12/17/2017 12:04 PM, Aaron Jackson via cctalk wrote: > Now that I have my RX02 drive working I have started to take a look at > the RL02 drives again. I hooked a scope up to the sector transducer and > sector timing test points, and they look nicely aligned. So I moved on. > > Then I hooked up

RL02 weirdness

Now that I have my RX02 drive working I have started to take a look at the RL02 drives again. I hooked a scope up to the sector transducer and sector timing test points, and they look nicely aligned. So I moved on. Then I hooked up the scope to the TP1, TP2 and the sector timing TP and compared

Re: RL02 to PC image

> From: Jonathan (Systems Glitch) > the vtserver `rx` driver has a bug in it anyway where it continues > reading past the end of the media I'll be working with the RX driver for the standalone stuff soon on a project of my own, I'll look into this then. BTW, 'VTserver' refers to

Re: RX02 Difficulties

> My copy of of the V7 standalone stuff (which I got from the VTServer > directory) didn't include an RX driver. Where'd you manage to find one? So, thanks to a tip (thanks, Jerry! :-), the source has been found: https://github.com/chapmajs/vtserver/tree/master/pdpvtstand

Re: BT139-600G Triac Equivalent

On 12/17/2017 08:24 AM, Peter Coghlan via cctalk wrote: >> I have a suspicion that this component may be faulty on the input side of my >> H7826 PSU. A little tester I have does not recognise it, it is possible that >> the currents it uses are too low for this particular triac, but I am not >>

Re: BT139-600G Triac Equivalent

> > I have a suspicion that this component may be faulty on the input side of my > H7826 PSU. A little tester I have does not recognise it, it is possible that > the currents it uses are too low for this particular triac, but I am not > sure. > What is the function of this triac in your power

Re: Vaxstation 4000 m60 and NetBSD

Don't forget however that using X remotely works fine. On 17 December 2017 at 12:09, Marco Rauhut via cctalk wrote: > Thanks for your quick answer! > > Hardware support say no support for LCG Graphics :-( > > Marco > > > > Am 17.12.2017 um 12:47 schrieb Aaron Jackson: >

Re: Vaxstation 4000 m60 and NetBSD

Thanks for your quick answer! Hardware support say no support for LCG Graphics :-( Marco Am 17.12.2017 um 12:47 schrieb Aaron Jackson: 1.) It is not posible to switch the console from RS232 to the VGA Monitor and Keyboard. If i switch the S3 switch in down position i can only see the NetBSD

Re: Vaxstation 4000 m60 and NetBSD

> 1.) It is not posible to switch the console from RS232 to the VGA > Monitor and Keyboard. If i switch the S3 switch in down position i can > only see the NetBSD Kernel decompression. After that i see nothing on > VGA and RS232 console. The System starts up anyway. After some time it > is

Vaxstation 4000 m60 and NetBSD

Hello List, i playing arround with my Vaxstation 4000 60 This is a System with 40 MB Ram, 1GB Hdd, a VGA Monitor, LK201 Keyboard, VSXXXAA.B03 Mouse, and a external SCSI-CDROm dirve. With OpenVMS installed on it i have the grafical DecWindows System running. Now i have installed NetBSD

BT139-600G Triac Equivalent

I have a suspicion that this component may be faulty on the input side of my H7826 PSU. A little tester I have does not recognise it, it is possible that the currents it uses are too low for this particular triac, but I am not sure. There are new ones on ebay, but I am not sure if I can trust

Re: offering: computer, A/V and optical equipment, plus books and more, to be cleared out around mid-December

Recently I wrote: > [...] overview of what I have up for sale: The above overview was updated. (You may want to hit refresh, depending on your browser's cache settings.) The deadline has been extended somewhat, as a result of some interest and some parts I can hold onto