Posts Tagged ‘crystal set’:

2024-03-29 FM Crystal Set Uses Helical Resonator For Tuning

This is a long article but a very interesting project.  It uses HSMS-2850 Schottky detector diodes in a discriminator.  He uses WE 1200 ohm sound powered headphones.  He’s Canadian. https://electronbunker.ca/eb/FMCrystalSet.html

2024-02-11 Calculations: Ferrite Loopstick for a Crystal Set

I think this came from a crystal set made in Japan during the mid-20th century.  It has a ball on the end of the ferrite rod like the crystal sets that were shaped like a rocket and this ball was at the rocket’s nose.  The coil measures 38 to 380 microhenrys depending on the position

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