Whilst on a theme of components, Roger G3XBM, pointed GQRP readers to an article by Ramon Vargas Patron called Oscillations and Regenerative Amplification using Negative Resistance Devices. He uses a lambda diode arrangement in place of a tunnel diode. His lambda diode is made from and an MPF102 and a 2N3820. The article shows how these can be used to make a sine wave oscillator and a simple AM receiver.
Stewart/G3YSX
Stewart/G3YSX
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