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
TRAFFIC PINCUSHION
Although the industry produces a wide variety of beds, making the simplest variant, shown,will take just a few seconds — you just have to insert in the hole on a spool of thread the...
“GREYHOUND” IN THE ARMOR
As you know, in the United States before world war II tank development has been given insufficient attention. In the end, by September 1939 the us army had virtually no modern tanks and...
