Portable suppressor of television and radio channels

This device was conceived recently, because of the continuous series could not work quietly. And a couple of days ago a good thought came to my mind! assemble a portable suppressor of television and radio channels. The device itself has a fairly simple circuit.
The generator - the jammer is assembled on just one transistor. You can use any high-frequency transistors with a cutoff frequency of 300 MHz. KT 325 was used in the design with an operating frequency of almost 1 GHz (900 MHz standard), you can use KT368, C9014, C9018, in short, any low-power RF transistors.
The design consists of only a few components, in particular a frequency-setting capacitor, an emitter resistor, which limits the current of the transistor, circuit, and antenna, which are designed to modulate interference.
Such a toy can suppress any range in the region of 60-200 MHz, you can tune to any desired range,
The device was demonstrated in one of my videos, and since then there have been many letters in which users ask for a scheme, today the scheme is no longer a secret, and it has never been kept secret.
The adjustment for the suppression of the desired range is done using a tuning capacitor, it must be selected with a maximum (fully open) capacity of 40 peaks.
The coil is wound on a frame with a diameter of 6 mm, contains only 6-7 turns of wire with a diameter of 0.8 mm.
The device can purposefully suppress one specific TV channel, literally any, except of course satellite channels, since there the frequency is quite increased.
The device perfectly suppresses FM-AM radio stations at a distance of up to 30 meters.
A piece of stranded wire with a length of 30-40 cm can serve as an antenna.
The tuning capacitor can be removed from the housing or made a hole in it for convenient adjustment of the device.