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Felt-Tarrant Comptometer Model J

by billdeg - 07/07/2016
Total messages in this thread: 1
The Comptometer Model J, manufactured by Felt-Tarrant, Chicago. This unit has a serial number that indicates it was made in 1929. Click for larger view.
Click for larger view.
I picked this up at a local farmers' market for $15, thinking it was an older model. I did some research and found that this was the "J" was sold during the Roaring 20's, so it's not the original Comptometer from the late 19th century. The first units had a wooden case. Oh well, still interesting looking. The woman who sold it to me said they have the missing... [ read more ]

X-Men: Apocalypse: IBM PCs in CIA office

by billdeg - 06/25/2016
Total messages in this thread: 1
Just for the record, when you watch this movie, if you do...the IBM PCs in the CIA office are mine. I rented them to the movie. The scene is supposed to depict the CIA offices as they would have looked in 1983. I am pretty sure they would not have had IBM PCs on every desk back then. They would have had terminals running PROFs, but ... the price was right. You'll see the IBM PCs just as Professor Xavier starts talking to agent Moira MacTaggert. If you don't have the movie, you can briefly see a PC or two in the movie preview. http://cdn2-www.comingso...-MacTaggert.jpg here is the scene, but this clip starts just after the pan through the office where the PCs are visible X-Men: Apocalypse | "Moira’s Office” Clip [HD] | 20th Century FOX https://www.youtube.com/watch?v=pastin69D5c... [ read more ]

Digital Rainbow PC100-B2 (100+ and B2)

by billdeg - 06/24/2016
Total messages in this thread: 2
Last Post: [ Archive VENIX ] 02/22/2017
DEC Rainbow 100+ removed from and resting upon it's pedestal case. Click for larger image.
This thread will document the restoration of two DEC Rainbow Model PC-100 B2 units. Both are not functional. One is a "plus" unit with a pedestal case. Otherwise they're pretty much the same.
DEC Rainbow display with plenty of screen rot, model VR-201. The display works inside, so the question is whether to attempt a repair or just swap with a non-working case. Click for larger image.
[ read more ]

Configuring a DL-11 M7800 serial card

by billdeg - 06/14/2016
Total messages in this thread: 4
Last Post: [ Repair Tips ] 06/16/2016
DL-11 M7800 front side jumpers
This DL-11 M7800 serial card was installed in the rear of the PDP 11/40 "industrial11" backplane and was attached to an unknown device by a 1700004-1 flat cable (a.k.a cable with Berg connectors both ends). Click image for larger view.
More photos I don't know what this card was originally connected to, something that communicated at 4800b with 8 data bits. I decided to re-purpose this card and attempt to convert for use with a console terminal at 9600 b 8N1. If I come upon the original device (phone?) I can refer back to the original settings. --------------------------... [ read more ]

Restoring a Lear Siegler ADM-3A

by billdeg - 06/13/2016
Total messages in this thread: 1
Ian Primus clued me in about the potentiometer just behind the yoke of the ADM-3A display CRT. These are used as a secondary control used to adjust the brightness. The tube display is weak and needed more voltage to the tube. Click image for larger view.
Basically this ADM-3A needs some help. I am not sure if this is the same ADM-3 I wrote about in 2008, or if I gave that one to VCFed for their museum. At one time I had three. This is the only ADM-3A I have now, so I decided to bring it to the VCFed Workshop this past weekend, June 12th (13th).
Two problems. First the terminal logic is sending zero's to the vi... [ read more ]

SIMH Emulator - 1956 LGP-30 Computer

by billdeg - 02/09/2015
Total messages in this thread: 5
Last Post: [ Blackjack Disassembly ] 06/10/2016
The 1956 Royal Precision Electronic Computer model LGP-30
The 1956 Royal Precision Electronic Computer model LGP-30
Making heads or tails of the LGP-30 SIMH simulator written for the Royal Precision Electronic Computer model LGP-30 is a worthy challenge for any early 21st Century computer user. Built by the Royal McBee Corporation and first sold in late 1956, this machine is mentioned by sources to be the first personal computer - i.e. the first electronic computer designed for one person to use / operate. The Friden Flexowriter is the I/O device. The Flexowriter is similar to the ASR 33 Teletype in that it included both a typewriter/printer and a papertape storage/reader function. Operational... [ read more ]

PDP 11 9312 ROM Inventory

by billdeg - 06/08/2016
Total messages in this thread: 1
Here is a list of the PDP 11 9312 ROMs I have on hand. I have many duplicates if you see this list and would like to buy a ROM from me, or trade something: 751A9 RL01/RL02 (DL) 752A9 RK06, RK07 (DM) 753A9 RX01 floppy disk, S.DEN (DX) 755A9 RP02/RP03 (DP), Massbus RP04, RP05, RP06, RM02, RM03 (DB) 756A9 RK03, RK05 DECdisk (DK), TU55, TU56 DECtape (DT) 757A9 TU45, TU77, TE16 Massbus tape (MM) 758A9 TS03, TU10, TE10 tape (MT) 759A9 RS03, RS04 (DS) 760A9 ASR33 (TT), PC05 (PP) 761A9 TU60 DECcassette (CT) 764A9 TS04, TS11, TU80 tape (MS) 765A9 TU58 DECtape II (DD) 767A9 MSCP disk, including UDA50, RAxx, RA80 (DU) 811A9 RX02 floppy disk, double density (DY) 616F1 - CONSOLE ROM 248F1 - A0 SG 990A9 - RA80 VAX ONLY 811A9 - RX02 For more info http://ak6dn.dyndns.org/PDP-11/M9312/... [ read more ]

Setting Up OpenVMS 7.1 DNS CLERK

by billdeg - 06/06/2016
Total messages in this thread: 1
DNS Clerk Manage namespace and clearinghouse characteristics for the DIGITAL Distributed Name Service (DECdns) clerk. dns clerk, known namespace, manual nameserver , remote clearinghouse I believe you set DNS using BIND in OPenVMS...checking stand With">by.,.. http://labs.ho...node/1533 "..With TCP/IP Services V5.0 and later, invoke the configuration tool: $ @SYS$MANAGER:TCPIP$CONFIG.COM With TCP/IP Services versions prior to V5.0, invoke the configuration tool: $ @SYS$MANAGER:UCX$CONFIG.COM You will want to select the so-called core environments configuration menus within the configuration tool to access the host name and the IP address(es) assigned to the network controllers, or to change the IP domain or subdomain for the host. If you are using DNS, you will want to coordinate the host name change with the organization maintaining your DNS ser... [ read more ]

Telnet host list

by billdeg - 06/02/2016
Total messages in this thread: 1
This thread contains public Internet telnet hosts that can be accessed from vintage devices with limited graphics. --Thread date equal to last edit date.-- TextMMOde.com Sands of Time / Deep Space MMO This is a text-only adventure game with multiple players in real time. ... [ read more ]

Raytheon VT302 Computer

by billdeg - 11/16/2008
Total messages in this thread: 2
Last Post: [ Former owner experience ] 05/31/2016
Little is known about the Raytheon VT302 office computer. I was able to boot the communications disk that came with it. I also took it apart and took pictures. I was surprised to find that this is an 8085 CPU computer. Very rare. I have the manual to the earlier version of this system, with cassette storage. Note the interesting controls on the Raytheon display. What's next? I would like to image the one working diskette, and possibly recover what appears to be the system disk. Raytheon VT302 pictures... [ read more ]

PDP 11/40 72 inch cabinet model

by billdeg - 04/06/2015
Total messages in this thread: 3
Last Post: [ re-assembly and power ] 05/12/2016
For lack of a better name, I will refer to this PDP 11/40 as the "full height" or 72" cage system to differentiate it from the others I am working on. The PDP 11/40 front panel and card cage chassis is located at the top of the 72" cabinet. This photo was taken before the unit was cleaned up. Click image for larger view.
PDP 11/40 core memory
Note the H and G modules of a core memory system. These cards are from the top chassis. Click image for larger view.
[ read more ]

Mac 128K with SAD MAC error 041800

by billdeg - 09/13/2007
Total messages in this thread: 4
Last Post: [ Flattened Horizontal ] 04/27/2016
yes, but what does 041800 mean exactly? which chip or section is bad? http://docs.info.a...tml?artnum=7748 04 = class code = memory test mod 3 1800 = chip identification codes, in binary combination 1000 is bit 12, chip G9 0800 is bit 11, chip G8 Need two 4264 chips, to replace G9 and G8. Thanks Herb.... [ read more ]

Digital VAX 4000-200

by billdeg - 04/27/2015
Total messages in this thread: 19
Last Post: [ DECnet ] 04/24/2016
The Digital VAX 4000-200
The Digital VAX 4000-200. Click for larger image.
The Digital VAX 4000-200 SHOW DEV Output
The SHOW DEV Output. Click for larger image.
... [ read more ]

Vintage Computer Festival East XI

by billdeg - 04/18/2016
Total messages in this thread: 1
Bill Degnan DEC MicroVAX 3100 VCF East 2016
Here I am next to my DEC MicroVAX 3100 display. I also brought the VAX 4000-200, VT100 and VT220 terminals, a Toshiba T3200SX, and a Zenith minisPORT. Click image for larger view.
Jump to All Photos I have exhibited at VCF East since the first one (VCF 3) in N.J. I always have a great time and I really admire the job Evan and the team did to put this together. The speakers were top notch. I got to each dinner with Ted Nelson and we chatted about computer history and what he was up to today. I'll follow up with some of those details, but for now, here are more photos: Cyclops...<strong> <a href=[ read more ]

Processor Tech 3P + S ASR 33 Jumpers

by billdeg - 04/01/2016
Total messages in this thread: 1
Processot Tech 3P+S ASR 33 Jumpers
The front view of the Processor Technologies 3P+S I/O S-100 card, used by early S-100 systems such as the Altair and IMSAI. This card is wired and jumpered for use with the Teletype ASR 33.
More photos... [ read more ]
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tcf 2008 digital pdp8 sn1158 front panel c

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