Re: Foolproof power supply interfaces

On 02/06/2018 08:10 AM, Peter Coghlan via cctalk wrote: > I asked my friend if anybody else had done anything to the radio before > he asked me to look at it. He said there used to be a big black heavy lump > of a moulded plug on the end of the mains lead but he got someone to cut it > off and

Re: CLASSICCMP vs. RackSpace or Gmail

On 2018-02-05 22:09, jim stephens via cctalk wrote: I'm subscribed twice, once from this personal domain, and also from my gmail account which seems to be clunking along archiving everything on google for free (for me).  No recommendation about signing up now, may have some rating the list uses

Foolproof power supply interfaces

> > I've done worse--used an AC-supply wall wart on a piece of equipment. > Poor thing didn't stand a chance. > > You'd have thought that after all these years, some sort of keying > system would have been developed, but I guess not. > I'm not sure it would help. What do we get when we try to

Re: [RESOLVED] Re: EPROM baking

On Mon, Feb 05, 2018 at 11:06:29AM -0800, Chuck Guzis via cctalk wrote: > On 02/05/2018 10:20 AM, Mark G Thomas via cctalk wrote: > > > 2) Many of the chips were failing to program because my Batronix > >programmer apparently requires more current than my USB port provides. > >This

Re: [RESOLVED] Re: EPROM baking

It might be a good idea to put color codes like on a resistor on the connector plug. You know, green for 5 gold for + center pin and silver for - center pin. No gold or silver band would be AC. Brown Red Gold would be 12VDC + on center pin. Dwight From:

RE: CLASSICCMP vs. RackSpace or Gmail

Zane, I have few problems with GMAIL but I do have a couple of rules that route these e-mails to a separate folder, never to spam. Dave > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Zane Healy > via cctalk > Sent: 06 February 2018 05:07 > To:

Re: Help identify "multichip module"

On Mon, Feb 05, 2018 at 11:37:27AM +0100, Camiel Vanderhoeven wrote: > > I have seen these before, in another life as an audio/video technician. > These plug into the video processor board on older Grass Valley > equipment, like the 100 and 200 series production switchers. I believe - > but

Re: Help identify "multichip module"

On Mon, Feb 05, 2018 at 11:37:27AM +0100, Camiel Vanderhoeven wrote: > On Sat, Feb 03, 2018 at 06:49:57PM +0100, Pontus Pihlgren via cctalk > wrote: > > Hi > > > > I got this picture sent to me with zero context. Does anyone recognize > > what it is? > > > >

Re: Foolproof power supply interfaces

On Tue, 6 Feb 2018, Chuck Guzis via cctalk wrote: But I do have a couple of wall-wart powered devices with either no indication of polarity (why the hell did someone get the bright idea of making inner conductor negative?) or voltage/current required. It's a good thing that I've labeled them as

Re: Foolproof power supply interfaces

Here is my idea. Not perfect but something that can be done to help. It might be a good idea to put color codes like on a resistor on the connector plug. You know, green for 5 gold for + center pin and silver for - center pin. No gold or silver band would be for AC. Brown Red Gold would be

Good Electronic/computer stores SF area

I haven't been in the San Francisco area in about 30 years. I remember a number of used computer/electronics stores back then, can't remember any names except Weird Stuff Warehouse. Are there any stores that are worth a visit? What about outside of the SF area? Doug

Re: Good Electronic/computer stores SF area

http://www.junktronix.com/svss/ but I've been told ACE has gone out of business that pretty much just leaves Anchor, Excess Solutions, Halted, and Weird Stuff On 2/6/18 3:23 PM, Douglas Taylor via cctalk wrote: > I haven't been in the San Francisco area in about 30 years. > > I remember a

How to enable USB drives in both Windows 98SE AND MS-DOS 7.1.

The title might suggest to topic is not vintage, but the reason I did this myself was to facilitate classic computer disk imaging. I’ve recently given USB drive capability to the MS-DOS 7.1 environment in a Windows 98SE computer I use for the purpose above. It was a bit of work configuring the

Re: VMS 8.4 Alpha Hobbyist disk images

On 2 February 2018 at 22:16, Wayne S via cctech wrote: > Notice: Downloaded this from the link and Norton says it is a virus. > PUA.InstallCore Please bottom-quote on mailing lists. Are you running an ad-blocker? If not, you should. I recommend UBlock Origin.

PDP8E 3.75V on Omnibus issue

Hey everyone, thanks for always serving as a great sounding board and source of advice! I have an issue with a PDP8E which has an issue with the power supply.  The -15V, 15V, and 5V are good, and my Bus Loads board is good, but for some reason the power supply is bringing down the 3.75V

Re: Google, Wikipedia directly on ASCII terminal?

On 01/16/2018 12:52 PM, Grant Taylor via cctalk wrote: You could do similar via null modem cable between a terminal and something like a Raspberry Pi. Watching Curious Marc's HP 264x Terminals - Part 3: Living the ASCII Life video made me think of this thread. Check out Marc's did video

Re: [RESOLVED] Re: EPROM baking

On 02/06/2018 12:05 AM, Tor Arntsen via cctalk wrote: > .. which led me to accidentally power a USB hub with 12V instead of > 5V - the power supplies looked the same, had the same plug, and I > couldn't read the tiny writing on the warts. That blew the nicest > notebook PC I've ever found - I

Re: VMS 8.4 Alpha Hobbyist disk images

On 2018-02-06 07:37, Douglas Taylor via cctech wrote: On 2/1/2018 12:55 PM, Douglas Taylor via cctech wrote: I'm getting an Alphaserver 1000a and wanted to install VMS 8.4 - hobbyist license from CD. So, I went to the folder on my PC where I have the 8.4 hobbyist distribution.  There are 3

RE: CLASSICCMP vs. RackSpace or Gmail

I suspect I must be missing something. I haven't gotten a request/question from Zane or Jim about anything lately. As Doc said "Please state the nature of your emergency" :> Let me know what you need and I'll be happy to help. J -Original Message- From: cctalk

Re: VMS 8.4 Alpha Hobbyist disk images

On 2/1/2018 12:55 PM, Douglas Taylor via cctech wrote: I'm getting an Alphaserver 1000a and wanted to install VMS 8.4 - hobbyist license from CD. So, I went to the folder on my PC where I have the 8.4 hobbyist distribution.  There are 3 ISO files; ALPHA084, ALPHA084LP1 and ALPHA084LP2. I

Re: CLASSICCMP vs. RackSpace or Gmail

On 2018-02-05 22:28, Joe Giliberti via cctalk wrote: A few months ago I stopped getting messages and ended up getting yhis address booted from the list because of excessive bounces after reactivating three times. Though straight away I signed back up and no issues since. Joe G That's the

Re: Good Electronic/computer stores SF area

Halted may not be too long in following. The guys that run it want to retire. If someone doesn't pick up the business they may have to drop it as well. I hadn't been over to ACE in about a year or more. It is too bad. They had parts that no one else had. Dwight

Re: Good Electronic/computer stores SF area

Arrow and Jamco are mostly retail with some classic parts. Dwight From: cctalk on behalf of David Collins via cctalk Sent: Tuesday, February 6, 2018 3:51:11 PM To: Douglas Taylor; General Discussion:

8" floppy drives from AMD development system?

Anybody notice this eBay auction? https://cgi.ebay.com/itm/222816138475 I'd guess it was part of a packaged AMD development system, maybe somebody recalls some specifics...? Or maybe that it was something else? Google is returning a lot about Age-related Macular Degeneration, and other

Re: [RESOLVED] Re: EPROM baking

On 5 February 2018 at 20:06, Chuck Guzis via cctalk wrote: > I have a similar gripe with barrel connectors, > which don't seem to enforce any standard at all regarding polarity or AC > vs. DC. .. which led me to accidentally power a USB hub with 12V instead of 5V - the

Re: CLASSICCMP vs. RackSpace or Gmail

Same as Dave, using GMail but I'm filtering into IMAP folders. Thanks, Jonathan On Tue, Feb 6, 2018 at 4:40 AM, Dave Wade via cctalk wrote: > Zane, > I have few problems with GMAIL but I do have a couple of rules that route > these e-mails to a separate folder, never to