This project contains the passive schematic and PCB design for the circuit as simulated in `Bob Pease's High Impedance Active Scope Probe simulations`:
https://easyeda.com/guest/Bob_Pease_s_High_Impedance_Active_Scope_Probe_simulations-gsmEyQ8qj
This project contains the passive schematic and PCB design for a simple DIY low frequency high input impedance active scope probe adapter.
It could a...
This project contains the passive schematic and PCB design for the circuit as simulated in `Bob Pease's High Impedance Active Scope Probe simulations`.
This project contains the passive schematic and PCB design for a simple DIY low frequency high input impedance active scope probe adapter.
It could also be used with a DVM.
A simple simulation adapted from the [YouTube video](https://youtu.be/F9w5r5l0J8Y) by devttys0.
The problem is to invert a 0-20v signal using only an opamp powered by a +/-15V DC supply. The circuit can be broken down to three stages:
1. Shifting the signal down to be +/-10V signal > Add a 0.1uF cap which will block any DC element in the signal.
2. Inverting the signal > Use a classic inverting a...
**This is an experimental electronic circuit, without any warranty.**
Single channel 2-way 24 dB/oct Linkwitz-Riley active crossover.
Crossover frequency: 2.9kHz
PCB dimensions: 60mm x 100mm
Equalizer characteristics - simulation
![param_eq_char1.png](//image.easyeda.com/pullimage/U8swwlhOA5G72ubR9XOqS...
The jfet input active oscilloscope probe described in "Troubleshooting Analog Circuits" by Bob Pease; Part 2 "The right equipment is essential for effective troubleshooting", Section 3, Figure 3.
Published in EDN January 5 1989.
A copy can be found here:
The original design can be found in:
http://www.introni.it/pdf/Bob%20Pease%20Lab%20Notes%20Part%208.pdf
There is one piece of information m...
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