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.

| Clique na imagem para ampliar |

Noise Filter (CB15039E)
We found this circuit in an Electronics Handbook from the 1980s. It filters out noise from a radio...
Wireless Alarm Transmitter (CB25208E)
We found this circuit in the May 1989 issue of Radio Electronics magazine. The circuit uses...
100 MHz Crystal Oscillator (CB13560E)
This TTL circuit generates a 100 MHz signal for digital instruments. The CI is not easy to obtain,...