Identifying TO-3 w/HP house numbering

2018-10-15 Thread Josh Dersch via cctalk
Hey all -- Got an HP 2382A terminal I'm attempting to resurrect. I get no video, no heater, no high voltage. What I believe to be the horizontal output transistor appears to be bad, but I'm not sure if this thing contains internal diodes that might be throwing off my testing attempts. It's

Re: Wanted: tech docs on original Iomega 8-inch full height 10MB Bernoulli drive (Alpha-10)

2018-10-15 Thread Ian Primus via cctalk
I can confirm that the media is starting to degrade - at least, it does if it wasn't stored properly. I have a couple of cartridges here that are shedding badly. You can manually open the cartridge by tripping the catches and sliding the door open, and look at it. Here's a picture of such a

Re: [TUHS] Ultrix Tape: Block Size?

2018-10-15 Thread Clem Cole via cctalk
#$%^ - they >>weren't<< like DECtape from a reliability standpoint ... ᐧ On Mon, Oct 15, 2018 at 5:00 PM Clem Cole wrote: > Be careful, TK-50 is different than 9-track. It's a streamer tape like > QIC, 4mm and 8mm. The blocking is done under the covers by the HW and the > blovk size if just

Re: [TUHS] Ultrix Tape: Block Size?

2018-10-15 Thread Clem Cole via cctalk
Be careful, TK-50 is different than 9-track. It's a streamer tape like QIC, 4mm and 8mm. The blocking is done under the covers by the HW and the blovk size if just how a DMA is done. I recommend that you pre-fetch the read with dd or double-dd setting ibs=64k, obs=20b and conv=sync and pipe

RE: Paul Allen

2018-10-15 Thread Rob Jarratt via cctalk
And an important figure in the preservation of computer history to boot. A very sad day. Sent from my Windows 10 device From: Murray McCullough via cctalk Sent: 15 October 2018 23:53 To: cctalk Subject: Paul Allen One of the founders of MicroSoft has passed on. The world has lost a true early

Paul Allen

2018-10-15 Thread Murray McCullough via cctalk
One of the founders of MicroSoft has passed on. The world has lost a true early computer pioneer. Murray--

Re: Paul Allen - RIP

2018-10-15 Thread Ethan via cctalk
https://www.king5.com/article/news/local/microsoft-co-founder-paul-allen-dies-at-65/281-604572895 Paul Allen just died. Zane Bummer! -- : Ethan O'Toole

Paul Allen - RIP

2018-10-15 Thread Zane Healy via cctalk
https://www.king5.com/article/news/local/microsoft-co-founder-paul-allen-dies-at-65/281-604572895 Paul Allen just died. Zane

Re: Ultrix Tape: Block Size?

2018-10-15 Thread Aaron Jackson via cctalk
If it is anything like installing NetBSD, which I have done on a VAXstation with a DLT4 drive, it should be 512 byte. So, while I do not know for sure for Ultrix and MicroVAX, 512 is probably a good starting point? Hopefully someone else will *actually* know. Aaron Warren Toomey via cctalk

Re: [TUHS] Ultrix Tape: Block Size?

2018-10-15 Thread Warner Losh via cctalk
I'm glad you corrected because when they worked, they were awesome. When they didn't, life had a lot of swearing in it... And when I was sysadmin for the MicroVAX II that had them, I swore like a sailor Warner On Mon, Oct 15, 2018 at 3:04 PM Clem Cole wrote: > #$%^ - they >>weren't<< like

Re: Wanted: tech docs on original Iomega 8-inch full height 10MB Bernoulli drive (Alpha-10)

2018-10-15 Thread Eric Smith via cctalk
Hi Mike, The Bernoulli disks definitely do use servo, so as you say, if the servo patterns are damaged the data is toast. Do you have any advice on head cleaning? The docs on the second-generation drive (Alpha-10H) just say to use a cleaning cartridge, and I don't have one. I've cleaned floppy

Ultrix Tape: Block Size?

2018-10-15 Thread Warren Toomey via cctalk
All, I received this request from Matthew who isn't subscribed to either the TUHS or cctalk lists. He knows how to read the lists archives. Many thanks for any help you can provide. Cheers, Warren - Forwarded message from Matthew Whitehead - Date: Mon, 15 Oct 2018 08:25:39 -0400 From: