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Altiar AM Radio Music Jukebox Project

by billdeg
Total messages in this thread: 1
MITS Altair8800b AM Radio Jukebox Project
MITS Altair "Jukebox" system with GE Radio and Lear Seigler ADM-3a terminal. Click image for larger view.
Steve Dompier's May 1975 People's Computer Company newsletter article Music of a Sort (republished in Dr. Dobbs Feb 1976) describes how one would generate music with a MITS Altair by using the front panel to generate tones that could be received over an AM radio. The goal of this project is to experiment with ways to automate the use of this program by creating a "jukebox" interface that can be used from a period-appropriate terminal to play various musical selections. ... [ read more ]

C128 Display Cables and the 1084 Monitor

by billdeg
Total messages in this thread: 1
with the Commodore 1084 display one can switch between all signal modes generated by the Commodore 128/128D computer. Note that there is both a CVBS (white/yellow/red) and RGB (grey) cable attached from the C128 to the 1084 display. Click image for larger view.
The CVBS / LCA button on the rear of the 1084 is in the LCA (out) position. This is required to display color while in 40-column CVBS signal mode (C64 or C128). If in the display will be grey. The position of this switch is ignored if you're using the RGB cable (80 column mode). Click image for larger view.
... [ read more ]

For-Sale / Items Wanted

by billdeg
Total messages in this thread: 1
NOTE: date of thread = the last update date. Note there are some old specific item for-sale threads on this site. If they're not linked from here, they're probably expired/sold. I have a lot of extra Digital / DEC stuff available at the moment. VAX 4000 VLC NEC PC-6001A with cassette RK06 Alignment Disk RK06 Data Disks DEC Rainbow parts UNIBUS Regulators More! FOR SALE Kilobaud (Microcomputing) Magazines - Nearly complete set - $lets make a deal Mostly Commodore and Tandy stuff here History of Commodore Poster Items Wanted Free Stuff? (Varies every day. Donations held by me and not claimed by VCfed (who has first dibs) are avail you're a VCFed member. I have tons of spare cables and adapters. Pickup onl">... [ read more ]

Sol-20 Keyboard Mylar Balloon Fix

by billdeg
Total messages in this thread: 1
Processor Technologies SOL-20 Terminal Computer
The Processor Technologies Sol-20 Terminal Computer after keyboard restoration experiment with a mylar balloon attempted. Click image for larger view.
Happy Confirmation Balloon
I picked up the Happy Confirmation mylar balloon at the local Hallmark shop. Note the inner lining is metallic. Click image for larger view.
This i">... [ read more ]

IRC Chat Info

by billdeg
Total messages in this thread: 1
GeoLink
Photo of my Commodore C-128D with JiffyDOS, various drives and 1084 monitor. This system uses a RR-Net to connect to IRC chat using GeoLink software. Click image for larger view.
geoLink: ...&show=summary Thread date is last update date #C64friends = irc.freenode.net #C64NetGaming = irc.newnet.net #vc = irc.slashnet.org [I have been told the newnet.net is not as active since this thread post was first created in 2013]">... [ read more ]

1993 HP NetServer 4d/66 LM

by billdeg
Total messages in this thread: 2
Updated: [ Battery Replacement ] 03/18/2018
HP Netserver 4d/66 LM With Pentium Upgrade
The HP NetServer 4d/66 LM with Pentium 66 upgrade installed was among the initial class of Pentium 60/66 machines sold in the USA. As far as I can tell, the name plate is the only thing differentiating this unit from a 4/66 LM that shipped with the Pentium installed by the factory. I have the 486 EISA card that was removed from this computer after it received a field upgrade. Click for larger view.
HP Netserver 4d/66 LM With Pentium Upgrade
HP's NetServer Pentium 66 was not i">... [ read more ]

DEC Server 550 converted to 11/83

by billdeg
Total messages in this thread: 1
This thread is a collection of notes taken to get started with this DecServer 550 with 11/83 cards (right three slots). The remaining cards currently in the slots would need to be removed and replaced with others suited to a 11/83. As I got the machine the cards were not plugged in. threads to review: http://www.vcfe....php/t-26959.html SO far I have: M8190 AE (CPU) M8637 EH (or EA?) RAM M8637 EH RAM need to complete build using QBUS cards on hand. http://scandocs...47AA-MG-001.pdf look to see if I can find RA72 drives and cables within my inventory. I have the correct controller cards: M7164 qbus sdi disk adapter 1 of 2 M7165 qbus sdi disk adpater 2 of 2 I">... [ read more ]

DEC QBUS and VAX card inventory

by billdeg
Total messages in this thread: 1
This thread is for internal inventory purposes, please contact me if you need a part from this list. box 1 KZQSA M5976 -SA SCSI L4006 BA CPU DESQAB -SA M3127 -PA ALLEN BRADLEY 6008-SQH2 SERIES A REV C M7168? M7621-AM M7769 DSSI Disk Interface M7606 AF MicroVAX II CPU M7605 AC TQK25 tape drive controller M7622-AT RAM Microvax III M7621-AM RAM Microvax III M7622-AL RAM Microvax III M7504 QBUS Ethernet Adapter M9047 grant continuity M9060 YA Q-BUS +5/12VOLT LOAD MODULE CXY08 -M M3119 -YA CXY08-A 8-Line Asynch Multiplexor M7168 VCB02, QDSS 4-plane colour bitmap CXY08 -M M3119 -YA DELQA -SA M7516 -PA M7622-AT Microvax III M7621-AF M7169 (verify this) M7625 KA655-BA microvax III CPU M7620 KA650 Microvax III CPU PLASTIC MILK CRATE M7164 qbus sdi disk adapter 1 of 2 M7165 qbus sdi disk adpater 2 of 2 L4005-AA ?/ ~1987 vax 4000 RAM CXY08 -M M3119">... [ read more ]

Items Wanted

by billdeg
Total messages in this thread: 1
This list is maintained regularly. Thread date is last update. Contact me Here. DecMate I 8" OS/8 disk(s), and if anyone has a spare 37-25 pin RX02 cable. Working PDP 11/40 EIS card, KE11-E M7238 PCS Micropac 80, Superpac 180 and related DATAC 1000 6502 trainer RCA COSMAC Microkit manual MPM-103. GO Tablet Model G400 power supply or battery (24V ). Commodore B Series hi-profile keyboard(s) Computer Data Systems "Versatile 2" s-100 computer 1977 (Newark, Delaware USA computer) Casio FX-9000P Canon CX-1 or BX-3 Acorn BBC Model A Eagle Computer Eagle II E (I have disks, need computer) Sord SM80X Oki 1F COM7 laptop Morrow Decision 1 Microvoice Nugen Sycor Model 302 Key-Cassette Terminal California Technology International 1108-A Manual/documentation Any mid 70's micros like the Sphere, Compucolor II, H">... [ read more ]

The Computer Church

by billdeg
Total messages in this thread: 1
the computer church museum
Unpacking the large collection. Looks like we have a pair of vintage Heathkit Servo Recorders. Click image for larger view.
the computer church museum
Dr. Michael Pearson, Director of The Computer Church. Click image for larger view.
More Photos ...more to come. The Computer Church a computer museum that will become open to the public in Spring 2018. It's located in Parkesburg, PA. about 15 miles from my house.">... [ read more ]

MITS 8800b Turnmon 9600 baud

by billdeg
Total messages in this thread: 7
Updated: [ VG Monitor, TURNMON, Front Panel Altair ] 02/07/2018
Pertec MITS altair 8800b Turnkey model key view.
A view of the on/off key on the Pertec / MITS 8800b Turnkey model. The system required some minor repairs, a short was detected in the turnmon board preventing I/O from the Turnmon board. I repaired some burned out traces and set the baud rate to 9600.
Pertec / MITS Altair 8800b Turnkey model 9600 baud jumpers
View of a repaired turnkey "turnmon" board. Note S0, S1, and S2 are jumpered to produce 9600 baud. S0 required minor repair, some of the original trace metal was lost. The staining is only cosmetic. Click image for larger vie">... [ read more ]

Commodore CBM PET 2001-32B Keyboard

by billdeg
Total messages in this thread: 3
Updated: [ External Cassette Short ] 02/02/2018
The Commodore CBM (PET) 2001-32B, after restoration. Click image for larger view.
After years sitting on top of a dryer in the laundry room, the entire motherboard became covered by lint dust. This photo shows some dust removed, revealing a pretty serviceable circuit board with little rust. Click image for larger view.
Keyboard Repair The system boots but other than the "u" key and the "Enter" key the keyboard does not respond to keystrokes. I took apart the keyboard. The circuit board tests OK and the key">... [ read more ]

CONNECTICUT microCOMPUTER (CmC)

by billdeg
Total messages in this thread: 2
Updated: [ ADA 1450 Printer Interface ] 02/02/2018
Cassette of the CmC Edit/Assembler program, 11/18/79 version. The editor / assembler is a Commodore BASIC program interface that calls PEEK and POKE commands through BASIC to edit and generate 6502 assembly language programs. Click image for larger view.
This photo shows a Commodore PET 2001-8 loading the CmC editor/assembler from cassette. Click image for larger view.
The CmC editor/">... [ read more ]

Computer History and Restoration Links

by billdeg
Total messages in this thread: 1
The thread date indicated last update. Suggest a site here. Bitsavers Software and Document Archive http://bitsaver...ge.com TextFiles.com rTTY Art Repository http://artsc...LLECTION/ Mazjel.com Datastore: Manuals and system docs galore. http://maben.ho...S100/index.html Dave Dunfield's Site - vintage computer newbies should start here, disk archiving info here http://www.classic...dunfield Glitchworks FDC Results Registry - Drive controllers for imaging disks https://services....tfdc_results Bryan's Old Computers Document Archive http://bytecoll...om/m8_docs.htm Every Computer That Ever Was (list) http://www.crowl...computer_list Samuel S Snyder's 1964 "History of NSA General-Purpose Electronic Digital Computers" http://www.govern">... [ read more ]

SIMH Emulator - 1956 LGP-30 Computer

by billdeg
Total messages in this thread: 6
Updated: [ Clock Gen Card Image ] 01/18/2018
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 ]
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