We found this balanced modulator circuit for DSB and possibly SSB transmissions in US 1980s telecommunications documentation. The diodes can be replaced with equivalents.
This circuit is based on an LM123 and can supply output currents up to 3A. IB is typically 3.5A...
Found in a Popular Electronics from the 90's, this circuit makes use of an integrated from the...
This is the simplest function that triggers the load if the level of the input signal is 1. In...