This circuit for UHF between 800 and 1 000 MHz was found in an American documentation from the 90's. The integrated circuit is from that time, uncommon today.
This input circuit for meters, which can also be used as a shield, is intended for operation with...
Found in American documentation from the 1990s, this TTL circuit operates at frequencies typically up...
This transmitter for short range in the medium wave range was found in a Raytheon publication from...