2903, 2021

Scalar wave communication options part 7, Superheterodyne versus TRF receiver, IF Amplifier, active bandpass filter and quartz crystal oscillator test circuit.new video

Admin/ March 29, 2021/ Application Notes

I happy to announce the release of the next video in the scalar wave communications series. We learn about the difference of Superheterodyne receiver and TRF receiver. I demonstrate the function of the IF Amplifier. We have an active band-pass filter and a test circuit for quartz crystal oscillators. To complete our receiver, we still require the RF- amplifier from

2303, 2021

Scalar wave communication options part 6, precision operational amplifier with envelope detector, new video

Admin/ March 23, 2021/ Application Notes

I like to announce the availability of the next video in the series of scalar wave communication. The last week was intensive for me as I was trying to solve many circuit designs issues. This is particularly the case when selecting components for the circuit. I was able to solve them and are now in the position to show you

1703, 2021

Scalar wave communication part 6, LM386, Class AB Operational Amplifier, undocumented scalar wave receiver function, new video

Admin/ March 17, 2021/ Application Notes

I like to announce the latest video release in the scalar wave communications series. I test the recently discovered undocumented function of the Operational Amplifier LM386. I test the reception strength of some antenna structures I used before, specific for the scalar wave reception. It will become clear that the antenna whip which is used for transverse reception does not

1603, 2021

Operational Amplifier part 3, LM386 Class AB audio amplifier, new video

Admin/ March 16, 2021/ Active Components

I like to announce the availability of next course material video of the Operational amplifier the LM386. With this Op Amp we build our end stage to drive a speaker. It drives 8 Ohm loads and does a fantastic job with my 10-Watt loudspeaker. While all setting from input voltage to signal voltage is at the lowest level, the output

1303, 2021

Operational Amplifier part2, OPA37, voltage gain versus voltage supply, new video

Admin/ March 13, 2021/ Active Components

I like to announce the availability of the next video in the educational series of Operational Amplifier. Here I test the OPA37. This chip is designed for high frequency unity gain of 50 MHz. It has ultra-low noise and is a perfect fit for our scalar wave communication project. What is never told in the documentation but listed as chart

1103, 2021

Operational amplifier part 1, use cases and configurations, new video

Admin/ March 11, 2021/ Active Components

I like to announce a new video as course material. With the need to amplify small signals we need to talk about a very generic component called the Operational Amplifier. This was so far not required because we did not need to amplify small signals or build electronical devices based on it. With the scalar wave communication project that has

0603, 2021

Scalar wave communication part 5, Class A biased and DC biased Full Wave envelope detector, new video

Admin/ March 6, 2021/ Application Notes

I like to announce the availability of the next movie in the scalar wave communication series. Here I did build the Class A biased and DC biased Full Wave envelope detector. A simple circuit which are in fact no so simple to configure. The only diagram I have does not contain any values for the components. It is based on

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