Operating in the range of 3 to 100 MHz, this circuit was found in documentation from the 70s. Observe the coil. The field effect transistor is a component of the era.
Indicated for scanning circuit applications, we found this generator in a Radio Electronics from the 80s....
This circuit produces sounds that depend on the measured voltage and that can be compared with a...
This circuit was obtained from Radio Electronics from the 90s. The infrared sensor is of an...