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Showing posts from February, 2014

My experiments with hooking up a Radio receiver-The 'THRILL'.

The year.... 1964 or 1965. City - Jodhpur I was a student of Electrical Engineering ( 1st/2nd Year). Jodhpur had just got its first own Akashvani low power Radio Transmitter.It had a limited range, just covering the Jodhpur City. We Jodhpur'ians were very excited, treating it as an endorsement to the growing importance of our city. There was a general craze amongst our classmates to hook up a local receiver set to catch this transmission. Not to be left behind, I also bought a few components-a crystal oscillator, a diode, a coil, a variable capacitor and a head phone. It looked almost magical that a motley set of components, when hooked together, could bring the sound into the head phone.   With great alacrity I connected the components.   Nothing happened. Checked the connections, tried changing the polarities, still nothing. Got frustrated and left it. Tried it again in the afternoon.   Same fate. Tried it again in the evening....Heard some crackling noises in