The circuit presented is a Japanese commercial radio from the 1960s. With a 4.5 V supply, it is a super-heterodyne type with an IF of 455 kHz. 6 germanium transistors are used.
This low power metronome produces pulses in a small loudspeaker. Pule rate is adjusted by P1 and...
The Texas Instruments TPS7A92 integrated circuit consists of a low-voltage (LDO) linear voltage...
In the figure we show the typical configuration of a shared line using a twisted pair where the...