Audio Visual User Interface with Ack
This circuit is an User Interface part of a Security Alertness Monitor that i designed decades ago. The circuits are here – Digital Circuits – Part 1 The RAM […]
Oscillators
Square and Triangle Opamp Oscillator
Here is the circuit of a Op-Amp based Square Wave Generator. One of the main application of this is in a Simple PWM circuit and […]
Tubelight Electronic Choke
This is an electronic choke for a Conventional Fluorescent Lamp. This was an application note of MJE13005 a High Voltage Switching NPN Power Transistor. I […]
Function Generator using ICL8038
ICL8038 and XR-2206 can help you build a Function Generator or Wavform Generator. It is needed along with the Oscilloscope and Power Supply on the […]
Astable Multivibrator with 555 Timer
This is a demo of the popular 555 timer. you can try out the project on this page by a javascript simulation. Press the Red […]
VCO with LM331
This Circuit is a simple Analog to Digital Interface with a capability of 10 to 12 bits resolution. 10 bits means 1024 counts or parts […]
1 Hz or 1 PPS Crystal Clock Base
The CD4020BC, CD4060BC are 14-stage ripple carry binary counters, and the CD4040BC is a 12-stage ripple carry binary counter. The counters are advanced one count […]
Crystal Oscillator – Parallel Resonant
74HCU04 is a chip that was made for this purpose, HCT may not work for such a circuit. C1 and C2 can go to upto […]