test-drb July 2003

test-drb@ccmp.vtda.org

279 participants
450 discussions

by rhahm＠nycap.rr.com

Hello, How do I delete or purge all files in the ED ":D000" without turning the machine on and off. Is there a command to empty the edisc od all files? I am making backup copies of discs and storing the disc contents in ":D000" when I copy a new disc all the files from the previous disc are stil in the ED. Thanks, Bob

21 years, 5 months

8250 LP Double disk drive for the commodore 64

by semlj001＠hotmail.com

I am looking for an 8250 LP Double disk drive for the commodore 64. Second hand is fine. If anyone could help me out it would be greatly appreciated. Lance. _________________________________________________________________ Hot chart ringtones and polyphonics. Go to http://ninemsn.com.au/share/redir/adTrack.asp?mode=click&clientID=174&refer…

21 years, 5 months

Fluke 1802 pod...

by jrr＠flippers.com

Last August you mentioned in a posting that you were looking for the 1802 pod...are you still? I have a NOS one I believe in my inventory. John :-#)# www.flippers.com John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out."

21 years, 5 months

Composite video to TV

by r.mueller＠fz-juelich.de

I have tried this twice with some luck in both cases. In both cases the computer was an Atari 800XL. One monitor started as a Black and white TV able to operate from 12 volts or line power. It was easy because it generated 12 volts with a transformer when running from the line. The signal went into the contrast control, not the wiper terminal but the "hot" stationary terminal. If you have enough signal level this will work directly but you can try getting in before the video amplifier or simply put in a small amplifier between the new video input and the contrast control (trivial with today's fast opamps) You can steal the power from somewhere in the TV. The other case was more interesting because it involved one of those nasty TV s running without a proper line isolating transformer. Here I went to an optical coupler based on a fast HP model coupler for analog signals (I believe these reach 10 MHz with some effort.) I needed a tiny transformer to provide drive for the LED on the computer side of the optocoupler (the computer output is not enough). This was setup to use a slight bias current at zero input voltage from the computer and increasing light level (more drive to the LED) with increasing video level. The main trick in all this is some extra frequency compensation to delay the fall-off of the signal at the useful higher frequencies (you should preserve as much as possible at least to 6 MHz and even a bit more if possible). The receiving end of the optocoupler was configured to serve as an amplifier to get enough signal for the contrast control. The B&W version gave a quite good picture containing most of the sharpness you might expect from a proper monochrome monitor and I liked it much better than the green things I was using at the time with other computers. The color version with the optocoupler was fairly satisfactory and I was happy to use it when a color monitor was simply too expensive to justify. Text was adequately sharp at 40 characters per line. Don't forget, the color still had to go through a PAL decoder with loss of sharpness. Incidentally, PAL is inferior to NTSC for this kind of job because the fundamental idea of PAL is the mixing of two adjacent lines to correct for level dependent phase shifts in transmitted pictures. The idea is great for TV but poor for computer work. Narrow horizontal lines simply suffer from this mixing. Still, the overall result was "good enough". HOWEVER; PLEASE OBSERVE ALL WARNINGS IN EARLIER MESSAGES. These transformerless sets kill the foolish. If you live in 230 volt land, the risk is still worse. Bob

21 years, 5 months

craig

by Hubert2752＠aol.com

Used to work there. They filed Chapter 11 in 1997 or 98. I was there at the end. If you have any questions let me know. Name was purchased by an electronics importer in Miami, FL.

21 years, 5 months

I thought the Univac was expensive

by zmerch＠30below.com

Rumor has it that Anonymous Coward may have mentioned these words: > > Who's got an extra 10+ kilobucks to start bidding on it to find the > reserve??? > > >It doesn't have a reserve on it. Ah, then the listing lied in another way: "... good condition. Must Sell, Low Reserve." as was also mentioned previously in the thread... Must be the only one in existance... :-/ (sure it is...) Laterz, Roger "Merch" Merchberger -- Roger "Merch" Merchberger -- sysadmin, Iceberg Computers zmerch(a)30below.com What do you do when Life gives you lemons, and you don't *like* lemonade?????????????

21 years, 5 months

Nortel Meridian 1 MAX Enterprise ACD Unit Chassis FREE for pickup in San Mateo

by mail.list＠analog-and-digital-solutions.com

I just got the word this morning that this is done. I was told that a salvage company that was picking up stuff there either is or has picked this up. To: cctalk(a)classiccmp.org Subject: Nortel Meridian 1 MAX Enterprise ACD Unit Chassis FREE for pickup in San Mateo FREE for pick up in San Mateo, CA Pretty serious VMEbus Telecom Chassis Nortel Meridian 1 MAX Enterprise ACD Unit Chassis ... Never Used We purchased this for the two boards, which have already arrived, and didn't need the chassis. http://www.analog-and-digital-solutions.com/temp-graphics/Nortel_Meridian_1… http://www.analog-and-digital-solutions.com/temp-graphics/Nortel_Meridian_1… http://www.analog-and-digital-solutions.com/temp-graphics/Nortel_Meridian_1… located at ... 2041 Pioneer Ct. Suite 204 San Mateo, CA 94403 Here are some phone numbers to call to schedule pickup 650 548- 5202 - Steve Wood (First Choice) 650 548-5224 - Ann McKercher 650-548-5240 - Bill Welling hours of operation are 9:00am to 4:00pm PST M-F Enjoy.

21 years, 5 months

Reading PDP-8 paper tapes

by pete＠dunnington.u-net.com

A long-time acquaintance of mine (Graham Toal, whom some of you may know) has access to a collection of PDP-8 paper tape which wants reading. Unfortunately some of it is in the care of the Royal Musuem in Edinburgh, who won't let it out of their sight. Does anyone -- preferably in the UK -- have a paper tape reader that could be hooked up to a modern machine (eg a laptop) to read the tapes in the museum, and which they'd be willing to lend? To see what Graham and friends are doing, take a look at http://history.dcs.ed.ac.uk/ It's worth a look even if you're not interested in Edinburgh. I know Graham reads the list, so replies here or to me are fine. -- Pete Peter Turnbull Network Manager University of York

21 years, 5 months

Well, I was at Fry's in CA...

by SUPRDAVE＠aol.com

In a message dated 7/1/2003 11:58:54 AM Eastern Daylight Time, teoz(a)neo.rr.com writes: << Hey if your lazy like me you will find places on the net to mailorder anything and have it dropped off at your house for cheaper then what you can buy it new with tax at the store. I would die without www.google.com. On a side note does anybody else get the feeling that UPS, USPS, and FEDEX love EBAY because of all the $1.99 treasures you find there that cost $5-XXX or more for shipping to get it to your house? >> oh yes. I saw a nice PS/2 model 80 on ebay with the blue lightning upgrade and SCSI drives and pretty much maxed out. It was very cheap, but shipping would have been cost prohibitive.

21 years, 5 months

Western Periphs TC-151 docs?

by aek＠spies.com

Does anyone have the hardware of logic manuals for the TC-151? It is a qbus controller for unformatted 9trk drives, and I'm trying to determine if it supports 18 or 22 bit addressing

21 years, 5 months

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test-drb July 2003