Testing the operation of an experimental preselector amplifier

This is an experimental preamplifier that I made a long time ago.
Covers everything from MW to SW with homemade monocoil replacement.
The circuit is the same as the preselector amplifier introduced last time, using 2SK19 transistors.
Although it is a simple circuit, it will be even better if the Q value of the variable capacitor or coil used is high.
As for the ground wire, just drop it on the floor.