CDV700 Geiger Counter

This project involves making several modifications to an early 1960s era Victoreen CDV700 or CDV600-6B geiger counter. These counters are available on E-Bay for around $50 to $100. The modifications use modern electronic parts to improve the counter's stability, extend the run time, and add a solar recharging capability. More: Circuit modifications include:

* Conversion to a single 5-cell NiMH rechargeable battery pack.
* Adding a voltage regulator to the geiger counter's main supply.
* Adding a secondary voltage regulator to the 3V supply.
* Adding a

The project focuses on enhancing the functionality and reliability of the Victoreen CDV700 or CDV600-6B Geiger counters through the integration of modern electronic components. The primary modification involves converting the existing power supply to a single 5-cell NiMH rechargeable battery pack. This change optimizes the energy source, allowing for a more sustainable and longer-lasting operation compared to the original battery configuration.

To ensure the stability of the Geiger counter's performance, a voltage regulator is introduced into the main supply circuit. This component will maintain a constant voltage output, effectively mitigating fluctuations that could affect the counter's readings and overall functionality. The voltage regulator will be selected based on the specific voltage requirements of the Geiger counter to ensure compatibility and reliability.

In addition to the primary voltage regulation, a secondary voltage regulator is added to the 3V supply line. This regulator serves to provide a stable voltage output for any components within the counter that operate at lower voltage levels. By incorporating this additional regulation, the integrity of the Geiger counter's performance is further enhanced, especially under varying load conditions.

Furthermore, the integration of a solar recharging capability is a significant improvement. This modification involves the addition of a solar panel and a charge controller circuit that will manage the charging of the NiMH battery pack. The solar panel will be selected based on the power requirements of the Geiger counter and the anticipated solar exposure. The charge controller will ensure that the batteries are charged efficiently without overcharging, thus extending their lifespan and maintaining optimal performance.

Overall, these modifications collectively aim to modernize the Victoreen Geiger counters, making them more efficient, environmentally friendly, and capable of providing reliable radiation measurements over extended periods.This project involves making several modification to an early 1960s era Victoreen CDV700 or CDV600-6B geiger counter. These counters are available on E-Bay for around $50 to $100. The modifications use modern electronic parts to improve the counter`s stability, extend the run time, and add a solar recharging capability.

Circuit modifications include: * Conversion to a single 5-cell NiMH rechargeable battery pack. * Adding a voltage regulator to the geiger counter`s main supply. * Adding a secondary voltage regulator to the 3V supply. * Adding a 🔗 External reference