This 3-channel transmitter for amateur analog TV from 902 to 908 MHz was found in a QST magazine from the 90s. The circuit is critical and must be designed with special care in the layout of the board.
This circuit can be enabled and disabled by a TTL signal. The relay is a low current reed type and...
This circuit was found in a 1965 US documentation. The circuit converts a DC signal to a 400 Hz AC...
This circuit can function as a high-power shield completely isolated from the power grid. We found...