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This circuit was obtained in 1965 General Electric documentation. SCRs can be modern common equivalents. The circuit fires with positive pulses. The load can be up to 7 A.
This circuit is intended to trigger an alarm when the input voltage exceeds one value and to...
This circuit, found in a 1986 documentation, uses an optical sensor to count pulses and, in its...
This circuit was found in Delco documentation from 1966. The components are from that time....