This low noise preamplifier has a gain of 19 dB in the 30 MHz band. The circuit is from the 80s. Transistors are from the era, and equivalents can be used. The circuit consumption is 13 mA.
We found this project in a 1982 publication. What we have here is an audio signal relay trigger, which...
This power supply was originally designed to power the amplifier shown in CB16743E, but it can be...
This circuit generates signals for adjustments in FIs of 10.7 MHz. The transistors can be BC548 or...