Safe Constant Current Source
In the above circuit diagram, a CMOS operational amplifier (op-amp) controls the current via a P-Channel HEXFET power transistor (IRF9520)...
Antenna 5/8l 27 MHz
Antenna "ORION-5/8" mass-produced DM is working with the base radio citizen's band 27 MHz. The main advantage of this antenna...

Electronic Die

01.04.2016 | Other
Electronic Die
The simplicity of a traditional die makes it exceptionally difficult to create a fully equivalent electronic version, if only because...
Antenna for field day
Often only complain about the lack of necessary materials for the manufacture of antennas. How do you solve the problem...

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