Frank Lockhart

Shelby, NC 28150

Frank was a design engineer who wrote software that drew on his 25 years of experience at E. I. DuPont, Western Electric, IBM, Duracell and more.

Products

Name Description Computers
Balance Calculates point of balance, beam lengths, weights, etc. Sinclair QL, Timex/Sinclair 1000, Timex/Sinclair 2068
BASIC Renumber Automatically renumbers programs written in BASIC. You choose starting line number and line increment. Timex/Sinclair 2068
Belt and Chain Drives Gives 9 important answers fast. Finds tangents, angles, pitch lengths, arc of contact, ratios, etc. Sinclair QL, Timex/Sinclair 1000, Timex/Sinclair 2068
Chord/Curve Finds radius, angle, arc and chord lengths, sector and segment areas. Gives angle in degrees and radians. Sinclair QL, Timex/Sinclair 1000, Timex/Sinclair 2068
Conversions/Functions Converts decimal degrees to degrees-minutes-seconds plus radians, grads. Gives six trigonometry functions for each input. Answers in one second. Sinclair QL, Timex/Sinclair 2068
Game Board It’s you against the computer. It picks a secret number, from 1 to 6. You must guess it to move 1 to 24 spaces. Can you go around the board in 75 tries? Timex/Sinclair 2068
Graphics Designer Design your own custom graphics for use in games, business, technical programs. Tutorial. Takes the mystery out of creating your own user defined graphics. Timex/Sinclair 2068
Guess the Number Computer generates a secret number from 1 to 99. Tells player if guess is high or low. Plays tune on correct guess. Timex/Sinclair 2068
Levers Solves for three most common types for forces, fulcrum point, lever length and more. Sinclair QL, Timex/Sinclair 2068
Math UDGs Now you can have fractions and Greek letters (those not already in the alphabet) for your math programs. Timex/Sinclair 2068
Oblique Trigonometry Solves all non-right angle trigonometry. Sinclair QL, Timex/Sinclair 2068
Pulleys and Wheels Finds the required force, diameters, lift, weights, etc. Sinclair QL, Timex/Sinclair 2068
Spur Gear Drives Calculates gear sizes, number of teeth, ratios and more. Gives 14 answers in two seconds. Sinclair QL, Timex/Sinclair 1000, Timex/Sinclair 2068
State Capitols Tutorial, multiple choice. Timex/Sinclair 2068
Terror from Mars 1939 Earth technology struggles to repel Martian invasion. Timex/Sinclair 2068
Trigonometry Solves right triangle problems fast. Sinclair QL, Timex/Sinclair 1000, Timex/Sinclair 2068
Weight Calculations 25 metals, 11 woods, 11 other materials. Varied shapes in all sizes. Fast answers. Sinclair QL, Timex/Sinclair 2068
Wire and Metal Rod Calculate quantities, costs, weights. Sinclair QL, Timex/Sinclair 2068

Books

Periodicals

Downloads

Articles

Title Description Computers
Bits and Pieces News about Sinclair Research Ltd., two Timex-based BBSes join FidoNet, SOFTAID fundraising cassette, update on Timex Portugal. Shorter updates on MSCRIPT, RMG Enterprises, an RS-232 interface from Edward Loxterkamp, speech software from Tad Painter, software from Frank Lockhart, Jim Clatfelter and Peter McMullin.
Latest Vendor News Updates on products and services from vendors.
Letters
Supplier News Timex/Sinclair 1000, Timex/Sinclair 2068

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