|Series-tuned Crystal Radio - Schematic|
|Ferri loopstick & PVC gang condenser|
However, both the loopstick and variable were too big for the crystal radio enclosure.
Trials, with a fixed 1000pf capacitor in series with available fixed inductors, were unsuccessful.
Ultimately, a lone 200 μH moulded inductor was found to work quite well, with the 60' wire antenna itself providing the capacitance.
|Inductor-tuned Crystal Radio - Schematic|