To radio sounded good on the UHF band, it should be adjusted to exactly take the radio. Will help you with this indicator fine adjustment circuit of which offers Bulgarian journal “Radio Television Electronics”.
The DC component of the FM demodulator is supplied to the comparison circuit (comparator), is performed on four low-power silicon transistors! for example, KT315, KT361, and two LEDs АЛ102А—АЛ102В (see figure).
With the engine variable resistor R5 on the right shoulder of the comparator serves a reference voltage from a stabilized power supply.
Recommend to read
A TRAP FOR MOSQUITOES
Among the devices designed to destroy high-voltage discharge of mosquitoes, latausha the light bulbs, and relates my development. It does not contain scarce parts, assemble it under the...
“THE ELUSIVE CLOUD” FROM THE COUNTRY OF THE RISING SUN
Initially, it should be noted that engineered as a carrier-based scout for use with class aircraft carriers Taiho C6N SAIUN ever from the deck did not fly. The first aircraft part, which...
