This dual balanced modulator configuration was obtained in a 1980s telecommunications documentation. The circuit makes use of transformers and the diodes are commonly used.
September 2016 - It can be obtained by Mouser Electronics the new dual analog switches TS5A22364 /...
I found this circuit in an English magazine from July 1982. The circuit is still viable by using...
The circuit shown in figure 1 consists of an Inverter Module for CCFL Lamp that can be supplied with...