Fault indicator (CB21396E)

This circuit was found in old American documentation. The operational amplifiers are from the period, but modern equivalents can be used.

| Clique na imagem para ampliar |

VHF to AM converter (CB16829E)
With this simple converter found in a 1997 documentation, it is possible to tune VHF stations to a...
330 MHz Oscillator (CB6509E)
This circuit was found in a 90's RF Design. The circuit employs an integrated of the time. The 56 to...
Digital potentiometer 4046 (CB25242E)
The figure shows how to obtain a digitally programmed resistance using the 4066. The circuit is...