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This circuit is from a 1967 RCA SCR manual. The circuit uses components from the era that can be replaced by modern equivalents. The transformer is 12 V x 1.2 A.
This circuit enables the bilateral command of triacs with the use of low current switches. The...
The figure shows a way to apply gain control to the LM3600 OTA. The circuit is from a Radio...
This configuration was found in a 1990s documentation. Modern operational amplifiers can be used...