Vintage programmable calculators
#vintage
#programmable
#calculators
#electronics
#retro
#computing
#educational
#history
#circuit design
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Programmable time-lapse camera controller
This project involves creating a programmable camera controller using basic hand tools and a digital camera. By utilizing components that are commonly found at home, the overall costs can be minimized. A servomotor can be repurposed from a radio-controlled model,...
Programmable Zener
The ICL8212 is configured as a programmable zener diode, allowing for the programming of zener voltages ranging from 2 V to 30 V by appropriately selecting R2. The zener voltage is influenced by this selection. Additionally, due to the lack...
Programmable Stiffness Joint
The Programmable Stiffness Joint is a device capable of internally modifying the rotational stiffness of a simple pivot joint. It serves as a proof-of-concept for future work aimed at developing a model to determine the respective damping and stiffness components...
The EC10 communications receiver
It is important to recognize that the EC10 is a vintage receiver with collector appeal. Any modifications should aim to preserve its original state, and most of the following suggestions adhere to this principle. While replacing all Germanium transistors with...
Programmable Current and Voltage Regulator for Battery Charger
This is a programmable current and voltage regulator circuit. It consists of a voltage regulator with external current limitation. The variable resistor R2 is...
The programmable current and voltage regulator circuit is designed to provide precise control over output voltage and...
case stepper
Beige Bag Software has been offering affordable and innovative circuit design tools since 1990. B2 Spice provides schematics as well as analog, digital, and mixed-mode electronic circuit simulation. It integrates with EAGLE and CADSTAR PCB software.
B2 Spice is a powerful...
Programmable Clock Oscillator
This is a voltage controller oscillator that was designed as a wide range oscillator to generate clock pulses for a stepper motor drive system. It does however have some interesting features. The original application used a stepper motor for its...
Programmable gate
This gate converts an AND gate or an OR gate by applying a logic 1 on the function input. The logic design utilizes eight two-input NAND gates. The number of gates may be reduced by replacing the five NAND gates...
Electronic Projects
This program includes circuit design CAD, simulation, and auto-routing PC layout. PSPICE is also utilized at Unisys, which offers more capabilities but costs six times as much and requires annual renewal. With these requirements and others in mind, a variation...