bendix GE-15?

2015-09-11 Thread W2HX
I think someone on one of the lists was inquring about this. Some items that might be of interest http://www.ebay.com/itm/Rare-Vintage-Bendix-G-15-Mainframe-Computer-Circuit-Board-Tester-/262042248871?hash=item3d02ef66a7 http://www.ebay.com/itm/Rare-Vintage-Bendix-G-15-Mainframe-Computer-DA-1-Inte

RE: IBM 026

2015-09-20 Thread W2HX
People who say that someone has 'more money than common sense' usually have neither. -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Todd Goodman Sent: Saturday, September 19, 2015 7:42 PM To: Able Baker Cc: General Discussion: On-Topic and Off-Topic P

RE: IBM 026 - Decision Data 8010 card punch on Ebay in Germany

2015-09-21 Thread W2HX
Ooh that is nice   73 Eugene W2HX   -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mattis Lind Sent: Monday, September 21, 2015 12:36 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: IBM 026 - Decision Data 8010 card punch on Ebay

RE: ESR Meter Recommendations

2015-09-30 Thread W2HX
It seems you may be using two terms interchangeably that have different meanings. Leakage is parallel resistance (DC) and ESR is series resistance (actually impedance so it is frequency dependent. Typically 120 Hz with a full wave bridge rectifier in front of it). -Original Message- F

RE: ESR Meter Recommendations

2015-09-30 Thread W2HX
[mailto:cctalk-boun...@classiccmp.org] On Behalf Of W2HX Sent: Wednesday, September 30, 2015 8:10 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: RE: ESR Meter Recommendations It seems you may be using two terms interchangeably that have different meanings. Leakage is parallel

RE: ESR Meter Recommendations

2015-09-30 Thread W2HX
Cc: j...@mercury.lcs.mit.edu Subject: Re: ESR Meter Recommendations From: Eugene (W2HX) > to model this using ideal components, we show a resistor in parallel to > the capacitor ... This modeled parallel resistor represents the leakage > current. > ... > because it is not

Bringing up a PDP-8e

2016-11-27 Thread W2HX
don't know how). http://dustyoldcomputers.com/pdp8/pdp8i/testprogs/index.html Can someone direct me to some simple sequence of switch settings to do some basic testing? Many thanks in advance Eugene W2HX PS. Here is more on the machine as received: http://w2hx.com/x/VintageComp/PDP-8e/ Also a

OT: Looking for Jos Dreesen

2016-11-27 Thread W2HX
Sorry for the bandwidth. Looking for Jos Dreesen who back in 2005 mentioned on this list that he had documentation on the ECRM OCR system. Please contact me if you can. Thanks Eugene

WTB: PDP-8/e handbook

2016-11-28 Thread W2HX
book and does anyone have one for sale? Thanks Eugene W2HX

pdp-8e power test/lamps

2016-11-28 Thread W2HX
which I will probably go with once I determine if I have a bulb problem or not. Thanks Eugene W2HX

RE: Can do (unbound) book scanning - was Re: WTB: PDP-8/e handbook

2016-11-29 Thread W2HX
ookbinder is on this list :) Located Toronto, Canada. --Toby On 2016-11-28 10:12 PM, allison wrote: > On 11/28/2016 09:23 PM, W2HX wrote: >> Hi all, >> >> I am in the market to obtain the PDP-8/e small computer handbook in the form >> of a real book. There is one on

PDP-8e power switch key?

2016-11-30 Thread W2HX
Hi folks, What are people doing for keys for the 8e? Is there a standard key used for all of them? Or do I need to have one made with some specific serial number of my key lock? I did some googling of this issue but wasn't able to get info. Thanks Eugene W2HX

RE: PDP-8e power switch key?

2016-12-01 Thread W2HX
-boun...@classiccmp.org] On Behalf Of Ethan Dicks Sent: Thursday, December 01, 2016 12:07 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDP-8e power switch key? On Wed, Nov 30, 2016 at 11:35 PM, W2HX wrote: > Hi folks, > > What are people doing for keys for the 8e?

RE: Digital circuits and analog devices

2016-12-01 Thread W2HX
Not only are they made of analog devices, but at the speeds things have been running at for the last 20 (maybe 30) years, they often behave like analog devices. Things like transmission line theory, crosstalk, oscillation, etc are all important design considerations. Eugene -Original Messa

RE: PDP-8e power switch key?

2016-12-02 Thread W2HX
Topic Posts Subject: Re: PDP-8e power switch key? Hi, On Wed, Nov 30, 2016 at 08:35:31PM -0800, W2HX wrote: > Hi folks, > > What are people doing for keys for the 8e? Is there a standard key used for > all of them? Or do I need to have one made with some specific serial number >

WTB: DEC M8310

2017-01-17 Thread W2HX
I am looking to buy a (preferably working) DEC PDP-8/e M8310 board. I have one that isn't working correctly. Mine is repairable, but it will be an easier repair with a working one on hand to compare results and pinpoint the problem. What have you got? Please contact me directly to discuss. Thank

quick omnibus question

2017-01-22 Thread W2HX
Hi friends. I am 100% new to my pdp8e and I am troubleshooting a problem. The problem is that whenever address bit 7 I asserted, I also see MD bit 4 asserted. I am hoping there is a simple short somehow between these lines somewhere. I should mention that my setup has known working boards with t

RE: quick omnibus question

2017-01-22 Thread W2HX
de/pdf/dec/pdp8/pdp8e/Omnibus_legenda.pdf This file shows the Omnibus signal locations CORRECTLY (extracted from a larger document) http://w2hx.com/x/VintageComp/PDP-8e/Docs/Omnibus_Card_Edge_Designations.pdf -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Beha

RE: quick omnibus question

2017-01-22 Thread W2HX
question On 1/22/17 2:05 PM, W2HX wrote: > I hope this email can be found by the next guy searching for the omnibus > details so they can avoid wasting time. > THIS FILE IS WRONG > http://bitsavers.informatik.uni-stuttgart.de/pdf/dec/pdp8/pdp8e/Omnibu > s_legenda.pdf > > This f

PDP-8/e M8310 Help

2017-02-05 Thread W2HX
Hello folks, I have a PDP-8/e where I've tested all the boards in a friend's PDP-8/e and they are all generally ok with the exception of the M8310 which did not work in his machine. I started to do some very rudimentary analysis of the what isn't working. I did the following. 7100 CLA clear

RE: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!

2017-02-13 Thread W2HX
ave no mini usb cables, not that I can't purchase one, of course! Eugene W2HX -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Philipp Hachtmann Sent: Monday, February 13, 2017 10:00 AM To: General Discussion: On-Topic and Off-Topic Posts Subjec

Re: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!

2017-02-14 Thread W2HX
That is a very nice and robust part you linked to. Looks perfect From: Ethan Dicks Sent: Feb 14, 2017 10:03 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: New batch of pdp8 OMNIBUS to USB interface! Please Read and react! On Tue, Feb 14, 201

Re: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!

2017-02-14 Thread W2HX
Personally, i don't care about lead free solder. I am quite happy with lead. Is there a rohs requirement for small production, non profit, prototyping project? From: Philipp Hachtmann Sent: Feb 14, 2017 11:54 AM To: General Discussion: On-Topic and Off-Topic Post

Re: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!

2017-02-14 Thread W2HX
Don't laugh http://w2hx.com/x/New%20Shack/0224151752b.jpg From: ben Sent: Feb 14, 2017 1:54 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: New batch of pdp8 OMNIBUS to USB interface! Please Read and react! On 2/14/2017 6:27 AM, Alfred M. S

RE: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!

2017-02-14 Thread W2HX
stuff won't be very useful :). Eugene W2HX -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Tony Duell Sent: Tuesday, February 14, 2017 2:57 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: New batch of pdp8 OMNIBUS to USB inte

RE: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!

2017-02-14 Thread W2HX
>The 45 baud machines do NOT run on 20mA. They usually run on 40mA :-) 20mA is >the domain of model 28, 32, 33 etc. 14's, 15's 19's, 28s are generally 60mA 120VDC signaling. My 28s have speed select for 60 WPM (45.45 baud), 75 WPM (56.9 Baud) and 100 WPM (74.2 baud). 100 WPM is very fast. It i

RE: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!

2017-02-14 Thread W2HX
>Two or three of my machines can be seen working in the movie Operation >Valkyrie with Tom Cruise :-) Interesting! One of my TTYs was in The Good Shepherd

DATARAM DR-118 docs?

2017-02-18 Thread W2HX
Hi folks, Looking for documentation on the DATARAM DR-118 16Kx12 core memory for PDP-8/e. I have the documentation on the DR-118A which is for the PDP-8/a. It is probably similar, but would love to find the right version. Anyone have such thing? Thanks Eugene

RE: DATARAM DR-118 docs?

2017-02-20 Thread W2HX
: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Doug Ingraham Sent: Monday, February 20, 2017 3:38 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: DATARAM DR-118 docs? On Sat, Feb 18, 2017 at 10:09 PM, W2HX wrote: > Hi folks, > > Looking for documentati

RE: DATARAM DR-118 docs?

2017-02-20 Thread W2HX
ot;E" version http://bitsavers.informatik.uni-stuttgart.de/pdf/dataram/DR118A-RefMan.pdf -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of W2HX Sent: Monday, February 20, 2017 3:44 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: RE: DATARA

RE: VAX 780 on eBay

2022-01-01 Thread W2HX via cctalk
lot of effort (locate a terminal/pc, wire it up, figure out where to plug it into the 780, etc. If this guy is a bulk dealer I would be surprised if he has the knowledge to do anything more than a power test which, again, would not be very useful and could even be detrimental. 73 Eugene W2HX

RE: VAX 780 on eBay

2022-01-01 Thread W2HX via cctalk
, DC filtering becomes an issue. 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctalk On Behalf Of Jonathan Chapman via cctalk Sent: Saturday, January 1, 2022 2:35 PM To: Grant Taylor ; General Discussion: On-Topic

RE: Apple I auction

2022-01-03 Thread W2HX via cctalk
Anyone know what this sold for? 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctalk On Behalf Of s shumaker via cctalk Sent: Friday, October 22, 2021 9:07 PM To: General Discussion: On-Topic and Off-Topic Posts

RE: Source for replacement caps in H744 regulators

2022-01-06 Thread W2HX via cctalk
not. I don’t know if what you are hearing is transformer hum, but if it is, you may just have to live with it. 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctalk On Behalf Of Matt Burke via cctalk Sent: Thursd

RE: DEC 3000/600 Alphaserver problems

2022-01-11 Thread W2HX via cctalk
he bad component. In case the power supply has any inductors that might suffer from a shorted tant, I would remove and use my own bench supply as described above. Good luck! 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message--

RE: Testing H745 Regulators

2022-01-26 Thread W2HX via cctalk
et on both 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctalk On Behalf Of Rob Jarratt via cctalk Sent: Wednesday, January 26, 2022 6:42 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Testing

RE: Rack Discussion Continued - Slide lubricant

2022-03-02 Thread W2HX via cctalk
> then grease them with light, white lithium grease. Fully agree! 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos

RE: Found! Ge 115 computer brochure

2022-03-14 Thread W2HX via cctalk
Here is some Baudot Art. Hot off the model 28 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctalk On Behalf Of Fred Cisin via cctalk Sent: Sunday, March 13, 2022 5:33 PM To: General Discussion: On-Topic and Off

RE: Found! Ge 115 computer brochure

2022-03-15 Thread W2HX via cctalk
Y/Art/Dutch-Windmill.jpg 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctalk On Behalf Of Christian Corti via cctalk Sent: Tuesday, March 15, 2022 4:09 AM To: General Discussion: On-Topic and Off-Topic Posts Subjec

RE: Found! Ge 115 computer brochure

2022-03-15 Thread W2HX via cctalk
Btw I have since resent the message with a link to the .jpg but I don't think it has come through. I suspect both images and links may be verboten on this list. Ironic considering the advanced technical proclivities of the membership! 73 Eugene W2HX Subscribe to my Youtube Channel:

RE: LSSM is chasing this, was Re: General Data? Computer

2022-03-18 Thread W2HX via cctalk
hought was the invention). But notably, vacuum tube technology that existed in 1919 might be hard-pressed to be up to the task. I look forward to doing some more research on this topic. Thanks! 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Or

RE: Retro networking / WAN communities

2022-04-12 Thread W2HX via cctalk
Internet message processor (BBN I think) 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctech On Behalf Of Wayne S via cctech Sent: Tuesday, April 12, 2022 1:24 PM To: Grant Taylor Cc: General Discussion: On

RE: Retro networking / WAN communities

2022-04-12 Thread W2HX via cctalk
I could be wrong, but I always thought the distinction between hub and bridge was, all traffic is broadcast to all ports on a hub. A bridge allows traffic to be segregated (albeit still on the same subnet). 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel

RE: Advice on Desoldering an IC

2022-04-15 Thread W2HX via cctalk
rking device just to try it in another device I was repairing. Then I put it back. I had no concern about damaging the chip. I used to use the wick/sucker approach from childhood until about 20 years old. I always hated the results. Hakko is a game changer for me. 73 Eugene W2HX Subscribe to my Yo

RE: Advice on Desoldering an IC

2022-04-15 Thread W2HX via cctalk
ative. The dust may form flammable mixtures with air." 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctalk On Behalf Of Chuck Guzis via cctalk Sent: Friday, April 15, 2022 7:42 PM To: Fred Cisin via cctal

RE: Advice on Desoldering an IC

2022-04-22 Thread W2HX via cctalk
Indeed! Great investment. 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctalk On Behalf Of Rob Jarratt via cctalk Sent: Friday, April 22, 2022 2:04 PM To: 'General Discussion: On-Topic and Off-Topic

RE: new Z80 monitor ROM works with no RAM

2022-04-27 Thread W2HX via cctalk
Dang! That Z80 computer looks AWESOME. Is there a website that talks about it? Is this a homebrew project or something he plans to make available as a kit? 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: cctalk On

[cctalk] Re: BBS memorabilia

2022-08-01 Thread W2HX via cctalk
>“yellow pages” Do you recall what this was called? I remember (vaguely) something called the "Yanoff List" which was an attempt at a paper catalog of websites. 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message---

[cctalk] Re: VT220 North of Boston

2022-08-08 Thread W2HX via cctalk
North Andover, MA or North Andover WI? 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: Dave Mitton via cctalk Sent: Saturday, August 6, 2022 10:34 PM To: cctalk@classiccmp.org Cc: Dave Mitton Subject: [cctalk

[cctalk] Re: VT220 North of Boston

2022-08-08 Thread W2HX via cctalk
haha 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: Hagstrom, Paul via cctalk Sent: Monday, August 8, 2022 5:32 PM To: General Discussion: On-Topic and Off-Topic Posts Cc: Hagstrom, Paul Subject: [cctalk] Re

[cctalk] Re: Dec rl02 disk pack shelf design

2022-08-09 Thread W2HX via cctalk
packs and storing them in many linear feet of desktop wire holders might not be an efficient way to store them. 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: Jonathan Chapman via cctalk Sent: Tuesday, August 9

[cctalk] Re: Wang bar napkin story [WAS:RE: Re: "Revival" of a dedicated Micropolis webpage on internet]

2022-08-21 Thread W2HX via cctalk
I always thought it was interesting how 5 1/4 is 3U (rack units). I thought there might have been some relationship to that. But could have been just coincidence. 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos -Original Message- From: Tom

[cctalk] Re: Soviet PDP clones

2022-10-18 Thread W2HX via cctalk
This is an excellent video on the history of Soviet computing and the causes of their lagging behind the west. I cannot comment on the accuracy since I am no expert in this subject. But a very interesting and informative video. https://www.youtube.com/watch?v=dnHdqPBrtH8 73 Eugene W2HX

[cctalk] Inline Serial Device?

2022-11-11 Thread W2HX via cctalk
output? Some kind of box? Does anyone know of such a thing? I guess it could be cobbled up with a microcontroller, but hoping to just get something "off the shelf." Thank you 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx

[cctalk] Re: Inline Serial Device?

2022-11-11 Thread W2HX via cctalk
it to trigger a relay instead of a change of port. But before I went down that path, I thought I'd ask if anyone knew something more fit for purpose. Seems not and either this black box unit with a hack or a mcu might be my options. Thanks all! 73 Eugene W2HX Subscribe to my Youtube Chan

[cctalk] Re: Inline Serial Device?

2022-11-12 Thread W2HX via cctalk
back uarts, an MCU would certainly be the way to go. 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx -Original Message- From: Mike Stein via cctalk Sent: Saturday, November 12, 2022 3:09 PM To: General Discussion: On-Topic and Off-Topic Posts Cc: Mike Stein Su

[cctalk] Re: on the origin of home computers

2023-03-08 Thread W2HX via cctalk
I loved it. I would only suggest a human narrator like your daughter would be great. But I don't like the computer generated narration (I am right about the computer narrator, aren't I?). -Original Message- From: Steve Lewis via cctalk Sent: Wednesday, March 8, 2023 11:54 AM To: Gener

[cctalk] Re: mainframe vs mini

2023-03-11 Thread W2HX via cctalk
power but benefitted from low ripple. 73 Eugene W2HX -Original Message- From: Paul Koning via cctalk But apart from circular motion (i.e., feeding motors) there is a second reason to use three phase power: reduced ripple. Full wave rectification of n Hz mains power gives you a 2n

[cctalk] Re: mainframe vs mini

2023-03-16 Thread W2HX via cctalk
hone. Internet services ompanies like iVillage and many others were using it. Some IBM internet software also used this but I can't recall the names. But surely Apple jumped on the bandwagon with their iMac colorful cube thing in 1998 or thereabouts. But in general, I agree with t

[cctalk] Re: VCF East 2023 photos

2023-04-17 Thread W2HX via cctalk
Thanks for taking the time to document the show. I went to the link provided and only PART 1 and PART 6 link to other pages. Are parts 2-5 just not written yet? Or a bug in the html? 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message

[cctalk] Re: VCF East 2023 photos

2023-04-17 Thread W2HX via cctalk
Links are working now. Maybe a problem on my side, or maybe there were fixed. But thanks again for posting this 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: W2HX via cctalk Sent: Monday, April 17, 2023 1:52 PM To

[cctalk] Re: flipchip cleaning and pin corrosion inhibition

2023-04-23 Thread W2HX via cctalk
f too much moisture is absorbed. For this reason, it is recommended not to use water or water-soluble solvents to clean these components. Alcohol or hydrocarbon solvents are recommended for rinsing." 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos ---

[cctalk] DEC RL device

2023-04-30 Thread W2HX via cctalk
, should I not use it for fear of destroying an RL platter? https://w2hx.com/?prefix=x/VintageComp/Platter-Device/ 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos

[cctalk] Re: DEC RL device

2023-05-01 Thread W2HX via cctalk
to find documentation? Or even what the name/model of the product might be for googling? 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Paul Koning via cctalk Sent: Monday, May 1, 2023 8:33 AM To: cctalk@classiccmp.org Cc

[cctalk] Altair 8800 question

2023-05-09 Thread W2HX via cctalk
r units vs earlier units? 73 Eugene W2HX Check out my Youtube Channel: https://www.youtube.com/@w2hx/videos

[cctalk] Re: Altair 8800 question

2023-05-09 Thread W2HX via cctalk
Ok thanks everyone for the clarification. 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Brent Hilpert via cctalk Sent: Tuesday, May 9, 2023 2:29 PM To: General Discussion: On-Topic and Off-Topic Posts Cc: Brent

RE: Cross-talk square-wave?

2017-03-29 Thread W2HX via cctalk
this line in some other fashion, I don't believe this is an issue of cross talk. However, some pictures of some waveforms would be interesting to see Eugene W2HX -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Parent Allison via cctalk Sent:

RE: Model 28 Teletypes in Edmonton, Alberta

2017-03-29 Thread W2HX via cctalk
I might have missed it, but did you offer this on the greenkeys list (or would you like me to forward it?) they are tty enthusiasts. Eugene -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Richard Loken via cctalk Sent: Wednesday, March 29, 2017 6:42 P

RE: Cross-talk square-wave?

2017-03-29 Thread W2HX via cctalk
I am still not convinced it is coupling at all. You would expect the affected line to show a signal like dV/dt , no? I just don't think you can get square waves from square waves. That's not to say the input of some logic somewhere isn't getting triggered by unintended coupling and then getting

RE: Cross-talk square-wave?

2017-03-29 Thread W2HX via cctalk
same effect as long as the CS line hasn't changed change in characteristic. My 2c Eugene -Original Message- From: Jon Elson [mailto:el...@pico-systems.com] Sent: Wednesday, March 29, 2017 10:55 PM To: W2HX; On-Topic and Off-Topic Posts Subject: Re: Cross-talk square-wave? On 03

OT: PCI Ethernet or USB 2.0 ethernet?

2017-03-31 Thread W2HX via cctalk
Friends, I have an instrument that has an intel motherboard with 400 MHz FSB PCI (not PCI-e). It has a 100 mbps Ethernet card and it would be very useful to get faster networking. The chassis of this instrument is such that I cannot fit a traditional PCI 1GB Ethernet card (I've tried). So I wil

RE: In Hong Kong any old computing places to go?

2017-05-27 Thread W2HX via cctalk
If you ever have the chance to go to HK again, definitely also get your Chinese visa. I used to travel to China and I used to only get 3 and 6 month visas. But in the last year or two, they now grant 10 year visas which I obtained although I have no current plans to visit china. Although I don’t

RE: Why women were the first computer programmers

2017-08-24 Thread W2HX via cctalk
Oh, brother. 1955 is calling. -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Rod Smallwood via cctalk Sent: Thursday, August 24, 2017 12:15 AM To: Brian Walenz via cctalk Subject: Re: Why women were the first computer programmers On 24/08/2017 04:10

RE: VCF Midwest: Photos and Videos

2017-09-24 Thread W2HX via cctalk
Wow. Really impressive meet. congrats -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Jason T via cctalk Sent: Sunday, September 24, 2017 12:05 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: VCF Midwest: Photos and Videos The 12th VCF

[cctalk] Re: Linotype and other printing machines available

2023-06-19 Thread W2HX via cctalk
What am I missing? I can't find any photos in the links provided. I can't even find a subdirectory called linotype under the temp directory? 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Paul Koning via cct

[cctalk] Re: Talking PDP11

2023-07-11 Thread W2HX via cctalk
And by 1979 there was the fairlight... https://en.wikipedia.org/wiki/Fairlight_CMI 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos >Speaking of old computerized music playing technology, there are two from the >PLATO system at the University of Il

[cctalk] Re: Logic Analyzers - HP/Agilent 16700B or 1670G?

2023-08-21 Thread W2HX via cctalk
Or this looks cool http://www.retrocmp.com/tools/qprobe/327-qprobe2023-overview 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Martin Bishop via cctalk Sent: Sunday, August 20, 2023 4:42 PM To: General Discussion: On

[cctalk] Silly question about S-100 and video monitors

2023-08-30 Thread W2HX via cctalk
. 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos

[cctalk] Re: Silly question about S-100 and video monitors

2023-08-31 Thread W2HX via cctalk
Ok great info, everyone. Thanks for the information! 73 Eugene W2HX Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: William Sudbrink Sent: Wednesday, August 30, 2023 5:06 PM To: 'General Discussion: On-Topic and Off-Topic Posts

[cctalk] Decwriter III self test issue?

2024-02-29 Thread W2HX via cctalk
roperly. I haven't tried any external serial connection yet. 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos

[cctalk] Re: Decwriter III self test issue?

2024-03-01 Thread W2HX via cctalk
I thought I'd send a follow up that I have fixed the decwriter (whew)... A little lube goes a long way! Vid below. https://youtu.be/mJH3GPIvBvs 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: W2HX via cctalk Sent: Thursday, Feb

[cctalk] Re: Decwriter III self test issue?

2024-03-03 Thread W2HX via cctalk
Sorry! 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Lee Courtney via cctalk Sent: Sunday, March 3, 2024 5:03 PM To: General Discussion: On-Topic and Off-Topic Posts Cc: Lee Courtney Subject: [cctalk] Re: Decwriter III self test iss

[cctalk] How to shutdown RT11?

2024-03-21 Thread W2HX via cctalk
I just got a pdp-11 to boot and it seems to have rt-11 installed. How do I do an orderly shutdown? Google has info on simh but this ain't that. Thanks! 73 Eugene w2hx

[cctalk] Re: How to shutdown RT11?

2024-03-21 Thread W2HX via cctalk
W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Bill Gunshannon via cctalk Sent: Thursday, March 21, 2024 9:23 PM To: W2HX via cctalk Cc: Bill Gunshannon Subject: [cctalk] Re: How to shutdown RT11? On 3/21/2024 9:19 PM, W2HX via cctalk wrote

[cctalk] WAS: Amoeba OS, Now: VAX/VMS Licensing?

2024-04-01 Thread W2HX via cctalk
this? 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Antonio Carlini via cctalk Sent: Sunday, March 31, 2024 6:29 PM To: cctalk@classiccmp.org Cc: Antonio Carlini Subject: [cctalk] Re: Amoeba OS On 28/03/2024 23:29, Alexander

[cctalk] PDP-11 thingy. What is it?

2024-04-10 Thread W2HX via cctalk
gnize it? https://w2hx.com/?prefix=x/What-Is-It/PDP-11-Thing/Board2/ Any info appreciated! 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos

[cctalk] Re: PDP-11 thingy. What is it?

2024-04-10 Thread W2HX via cctalk
perfectly good working ones? Anyone know if there is any value in keeping the FC-202 or just keep with the DEC cards? 2. Any idea on that other card? https://w2hx.com/?prefix=x/What-Is-It/PDP-11-Thing/Board1/ Thanks guys! 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos

[cctalk] Re: PDP-11 thingy. What is it?

2024-04-14 Thread W2HX via cctalk
Thanks everyone! 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Carlos E Murillo-Sanchez via cctalk Sent: Thursday, April 11, 2024 12:37 AM To: Glen Slick via cctalk Cc: Carlos E Murillo-Sanchez Subject: [cctalk] Re: PDP-11 thingy

[cctalk] Re: 5,34 Petaflop System Cheyenne

2024-05-03 Thread W2HX via cctalk
Someone seems to want it. Bidding is at $250,000 and counting. I guess someone didn’t get the memo about getting just a few nvidia cards! 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Gavin Scott via cctalk Sent: Friday, May 3

[cctalk] Re: 5,34 Petaflop System Cheyenne

2024-05-04 Thread W2HX via cctalk
I wonder how well that machine would do at bitcoin mining Sent from Nine From: CAREY SCHUG via cctalk Sent: Saturday, May 4, 2024 12:28 AM To: General Discussion: On-Topic and Off-Topic Posts Cc: CAREY SCHUG Subject: [cctalk] Re: 5,34 Pet

[cctalk] Re: 5,34 Petaflop System Cheyenne

2024-05-04 Thread W2HX via cctalk
cctalk Sent: Saturday, May 4, 2024 12:41 PM To: W2HX via cctalk Cc: Jon Elson Subject: [cctalk] Re: 5,34 Petaflop System Cheyenne On 5/4/24 10:21, W2HX via cctalk wrote: > I wonder how well that machine would do at bitcoin mining > Umm, it will consume about 4000 Dollars of electricity per day!

[cctalk] DEC Qbus/Massbus?

2024-05-09 Thread W2HX via cctalk
Was there ever a massbus controller card for qbus systems? 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos

[cctalk] Re: teletype roll as an RF termination load

2024-06-12 Thread W2HX via cctalk
"teletype rolls" what, like rolls of paper? They are not effective as dummy loads. Sent from Nine From: Fritz Mueller via cctalk Sent: Wednesday, June 12, 2024 6:56 PM To: General Discussion: On-Topic and Off-Topic Posts Cc: Fritz Muel

[cctalk] Re: teletype roll as an RF termination load

2024-06-12 Thread W2HX via cctalk
Yes I do rtty and I use mechanical equipment. Several of us use military standards and military equipment. I show some of this on my Youtube Channel which can be found at @w2hx Sent from Nine<http://www.9folders.com/> From: ben via cctalk Sent: Wed

[cctalk] Re: Revocable Living Trust for Computer Collectors

2024-06-26 Thread W2HX via cctalk
None of our survivors will give a rats-arse about getting even a nickel for this stuff. All they will want is for it to be gone. They would probably even pay to have it carted away. So I don't think any economic analysis of how to dispose of a collection to maximize return is relevant. Sent

[cctalk] Re: Computers in the Paul Allen collection

2024-08-21 Thread W2HX via cctalk
Anyone want to guess what the Xerox Alto will (should) sell for? 73 Eugene W2HX My Youtube Channel: https://www.youtube.com/@w2hx/videos -Original Message- From: Paul Koning via cctalk Sent: Wednesday, August 21, 2024 3:25 PM To: cctalk@classiccmp.org Cc: Paul Koning Subject

Re: VAX 9440

2018-11-12 Thread W2HX via cctalk
plus one for the hakko 808. Love it! Never leave home without it! From: cctalk on behalf of Ethan via cctalk Sent: Monday, November 12, 2018 9:34 AM To: Eric Smith; General Discussion: On-Topic and Off-Topic Posts Subject: Re: VAX 9440 > > Some people ar

RE: Teletype cheap

2018-11-22 Thread W2HX via cctalk
The guru of ASR33s is WAYNE KB1FDW, teletypepa...@comcast.net sales, repairs, advice. 73 Eugene W2HX -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of steve shumaker via cctalk Sent: Wednesday, November 21, 2018 6:16 PM To: General Discussion: On

RE: Vintage Radio Catalogs

2018-12-21 Thread W2HX via cctalk
http://mailman.qth.net/mailman/listinfo/boatanchors might be good. 73 Eugene W2HX -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Columbia Valley Maker Space via cctalk Sent: Friday, December 21, 2018 6:54 PM To: cctalk@classiccmp.org Subject

WTD: 9 track open reel for PDP-11

2018-12-27 Thread W2HX via cctalk
om Philly to Boston for one. Hopefully one in good shape. Thanks 73 Eugene W2HX

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