Shortwave receiver (CB21205E)

This receiver for frequencies up to 18 MHz was found in American documentation from the 1990s. Data for coil winding is aggregated.

| Clique na imagem para ampliar |

Light intensity meter (CB7340E)
This circuit was found in a Philips documentation from 1970. The components are of the time,...
Pulse divider (CB6830E)
This circuit divides the frequency of a 2 kHz signal by 2. The circuit was found in Philips...
Wind Sound Generator (CB21346E)
This circuit was found in an English publication. The components are current, and the transformer must be...