1 kW synchronized switch (CB9266E)

Found in a 1967 RCA documentation, this circuit can be made with equivalent SCRs according to the load.

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Weighted Average Circuit (CB19909E)
This circuit was originally designed with the operational 747 which is rare today. However, the...
15 to 4800 Hz Variable Oscillator (CB13742E)
This circuit was found in a 1975 technical publication. The circuit can be designed with 741...
4 W amplifier TDA2613 (CB15989E)
The TDA2613 is the mono version of the TDA1521A and has pinouts compatible with an integrated...