Of specific interest is:
GE-MC100-NTP/GPS-ZB Master Clock Technical Reference Manual, P/N 3101592
This is rack-mount digital (Nixie) timekeeping and generating unit.
It is capable of taking a WWV signal and can generate timing in IRIG
formats.
I'm looking for schematics and/or service manual. The unit lights up
but the time display jumps around and occasionally displays impossible
time (e.g. 28 hours).
This Canadian-made clock lights up and keeps good time. The back light illuminates and
the analog ring of LEDs functions correctly. The six-digit red LEDs in
the center appear to show the proper time, although there were some oddities
when first tested. For example, there were periods of time where the
tens-of-hours digit showed additional, unwanted lit segments. Oddly, these
seemed to fade over time and now it appears to display the correct digit.
I have not tested the remote control nor the time code input.
I'd also like to find a service manual for it.
Does anyone have more technical information on this sign and power supply?
I'm looking for user and service manuals, as well as a replacement
telescoping antenna.
As you might expect, I'm looking for a manual.
The tens-of-seconds digit doesn't light up, but the clock itself
appears to keep time. Also, one of the three push buttons on the
bottom appears to be missing or broken. So, I expect I'll be needing
spare parts as well.
There is a mention of this clock on page 50 of Michael Robbins'
book Electronic Clocks and Watches. The caption reads
'A TTL clock with seven segment incandescent display.'
An ESE (E.S. Enterprises) sales brochure from 1973 doesn't show
the ES-10, so it's
either an earlier product that was discontinued, or it was introduced
after 1973. The
closest device in the brochure is an ES 112 Digital Clock, which
shows hours, minutes and seconds and has three controls (fast
advance, slow advance, and hold) for setting the time. ESE also
offered a kit version of this clock as well as a twenty-four hour
model (the ES 124).
The brochure lists ESE headquarters as 506 Main Street in El Segundo.
I have a FR-114/U frequency counter made by Winslow Electronics.
I'm looking for a service manual for this unit.
I don't have any software or documentation for this device.
I believe I found some of the related software
here,
but I'd certainly be interested in hearing from anyone who
has used this device or has software and/or documentation about it.
I'm looking for the following technical documents:
MCS-40 User's Manual for Logic Designers, Intel, 1971
Microcomputer Experimentation with the AIM 65,
Lance Leventhal
2100 Computer Microprogramming Software Handbook, Hewlett-Packard, 02100-90133.
TRS-80 Model 100 Assembler / Debugger Manual, 26-3823, Tandy Corporation, 1984
The Apple II Circuit Description, Winston Gayler, 1983, ISBN 067221959X
Cold Cathode Tube Circuit Design, Denis Neale, 1965
(click here for more information on Mr. Neale)
Electronic Counting Circuits, J.B. Dance, 1967
MOS Integrated Circuit Guide, Mostek Corporation, 1974 or 1975
Inside the HP-41, Jean-Daniel Dodin, 1985
U.S. Nuclear Weapons: The Secret History, Chuck Hansen, 1988,
ISBN 0517567407
The Marine Chronometer, Rupert T. Gould
Flying the Turbine Helicopter, Lee Nordan, 1989
The Map that Came to Life, H. J. Deverson, 1967
Quotations From Chairman Morrow, George Morrow, circa 1984
Binary Arithmetic Subroutines for the CDP1802 COSMAC Microprocessor, RCA
Design Ideas Book for the CDP1802 COSMAC Microprocessor (BMP 802)
H-8 Programming for Beginners, Don Inman, Bob Albrect and Ron Santore, 1980 (Dilithium Press), ISBN 0918398177
Programs and Teletype Procedure, Technical Bulletin 1972-1, by James E. Vaux.
A Causal Mechanism for Gauquelin's Planetary Effect,
P.A.H. Seymour, Plymouth, 1986
The Calendar of Tiahuanaco disquisition on the time measuring system of the oldest civilization in the world,
by H. S. Bellamy and P. Allan, 1956
Correlation of Cycles in Weather, Solar Activity, Geomagnetic Values, and Planetary Configurations, Maxwell Oscar Johnson, 1946,
Phillips & Van Orden Company, Inc., San Francisco, Calif.
Cycles in Weather and Solar Activity, Maxwell Oscar Johnson, 1950, Paradise of the Pacific Press
Effect of Sunspot Cycles on Long Distance Radio Signals, Harlan True Stetson, 1947
Nature magazine, 14 December 1978
Byte, any issue prior to 1981
CoEvolution Quarterly magazine, Issues 3 and 27
Creative Computing magazine, any issue prior to 1984
Cryptologia journal, Any issue prior to 1993
Estes Model Rocket News, any issue from 1960s and 1970s (especially Volume 11 Number 2, June 1971;
Why?)
IEEE Personal Communications, August 1995
People's Computers magazines, any issue
Popular Electronics magazines, January 1975, February 1975, October 1975, May 1976
Popular Science magazine, any issue from 1962 to 1982
Radio-Electronics magazine, any issue from 1962 to 1982
Road and Track magazine, July 1988
Science magazine, October 4, 1968
Time Magazine, August 25, 1986 (Why?)
The London Free Press Weekend Magazine, June 26, 1965
I'm looking for a manual for a Datametrics SP-100.
Six-digit Numitron display
(Click here for more information
about Numitrons.)
A compendium of the most useful CDP1800 Series microprocessor/memory
application hints that have appeared in recent issues of the RCA
Solid State Newsletter.
Microcomputer Experimentation with the MOS Technology KIM-1,
Lance Leventhal, 1982
The First Book of KIM, Jim Butterfield et al, Hayden Publishing
AIM 65 Laboratory Manual, Leo J. Scanlon
Understanding the Apple II, James Sather, 1983, ISBN 0912985011
Understanding the Apple IIe, James Sather, 1985, ISBN 0835980197
Cold Cathode Glow Discharge Tubes, G. F. Weston
Applications of Neon Lamps and Gas Discharge Tubes, Edward Bauman, 1966
MOS/LSI Databook, National Semiconductor, 1977
Synertek data book, 1979
You can read the text here,
but I'd still like to find a physical copy of the pamphlet.
Hewlett-Packard catalogs for the years 1971 and 1974
Micromonitor Operating System (MOPS) CDP 18S831 User's Guide, RCA
Instruction Manual for RCA COSMAC Microterminal , RCA
Long warm weather cycle ahead, Hideo Nishioka, International Economic Research Bureau, 1957
Solar activity and planetary positions, J. B. Blizard, July 1969
Application of the method of planetary configurations to active phenomena on the sun, V. S. Prokudina, January 1973
Hewlett-Packard Computer Systems Communicator newsletter, any issue
Hewlett-Packard Informer newsletter, any issue
Hewlett-Packard Journal magazine, any issue from 1968 through 1985
Hewlett-Packard KEYBOARD magazine, any issue
Hewlett-Packard Key Notes newsletter, any issue
Hewlett-Packard Personal Calculator Digest, any issue
IEEE Spectrum, April 1973
IEEE Transactions on Communications COM-30, May 1982
IEEE Transactions on Communications COM-31, 1983
including February 1970.
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Updated December 31, 2024
