Logarithmic generator (CB7593E)

This circuit has a 100 dB dynamic We found it in a Popular Electronics from the 90s. Equivalent operational can be used.

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Signal Injector (CB16594E)
This 1987 signal injector included the power supply from the power grid. The transformer is 6 + 6...
UHF amplifier (CB10063E)
This amplifier was found in a 70s documentation. The product gain x bandwidth is 350 MHz. The...
Receiver with FET (CB19262E)
This simple receiver with junction FET uses a high impedance magnetic earphone (over 2 k). Power...