VintageCalculators
Demonstrations of Numerical Methods Executing on Vintage Programmable Desktop Electronic Calculators (Vintage Late 60s to Early 70s).
Vintage Victor 4900 programmable calculator: Demo
July 9, 2023
Wang 452 Scientific Programmable Calculator (Vintage 1973)
Krohn-Hite Model 7500 Power Amplifier: Demo
Vintage 1970s Compucorp 445 Statistician Programmable Desktop Calculator
HP 9815A going through self test
HP 67 calculator: Memories from 40 years ago!
Experimental Demonstration of AM Modulation
A simple tunnel diode circuit exhibiting nonlinear behavior
Vintage Soviet D3-28 programmable calculator (inspired by the Wang 700 ?) demonstration
Lowpass Digital Filter Arduino Implementation; Bilinear Transformation of a 4th Order Butterworth
PID control of a Propeller Actuated Inverted Pendulum
Custom IBM Selectric Typewriter Controlled by a Vintage Wang 720 Calculator to Play Horse Race Game
Wang 720 Calculator Plays Jingle Bells!
Dynamics of a Lorenz-like nonlinear electronic circuit
Lorenz-type nonlinear electronic circuit with chaos and orbits
Rudimentary propeller controlled inverted pendulum
Heathkit ET-3400 Demo
Bifurcation, oscillation, chaos and strange attractors simulated on an analog computer
Bifurcation, oscillations and strange attractors simulated on a Comdyna GP-6 analog computer
Tunnel diode circuit dynamics: Simulation using a Comdyna GP-6 analog computer and 709 VDFG
Forced Duffing oscillator with damping simulated on an analog computer
Chaotic dynamics captured on a HP135A X-Y Recorder (Lorenz-like dynamics)
Phase plane of a coupled oscillator on an HP135A X-Y recorder
HP 135A X-Y Recorder interfaced to a Comdyna GP-6 analog computer solving a Lorenz-Type system
Lorenz-Type System: Exploring Bifurcation and Limit Cycles using Comdyna GP-6 Analog Comoputer
Texas Instruments TI SR-60 programmable calculator loading and executing a simple program
Part 2: Coupled oscillator (two mass/spring system) on Comdyna GP-6 analog computer
Unforced Duffing oscillator simulated on an analog computer