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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 makes use of a 741 single source operational amplifier to measure resistors on a...
This regulator is based on the SFC2308 integrated circuit, which is quite old, therefore difficult to...
This logic probe was found in a Popular Electronics from the 90s. The circuit is TTL and must be...