Differential Amplifier (CB20134E)

This differential pulse shaping amplifier was found in documentation from the 1980s. Switching transistors equivalent to the originals can be used.

| Clique na imagem para ampliar |

Voltage Relay (CB4151E)
This circuit causes the relay to be energized when the input voltage exceeds the voltage value of...
RTTY Circuit (CB20271E)
The maximum frequency of this circuit is 500 kHz. We found it in a documentation for radio...
Power Line Antenna (CB19177E)
The mains cables work as antennas. We can take advantage of them with this circuit that consists of a...