This is a Japanese commercial radio from the 60s. The superheterodyne circuit of 7 transistors for medium waves has 200mW of output when powered by 4 common batteries.
This circuit was found in recent English documentation consisting of a small inverter capable of...
Found in a 1991 Hobbyst Handbook, this circuit monitors both battery and alternator voltage. The set...
Analog Devices/Hittite's HMC3653LP3BE HBT Gain Block MMIC Amplifier covers 7GHz to 15GHz and is...