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The NE/SA575 is a precision dual gain control circuit designed for low voltage applications. The NE/SA575’s channel 1 is an expandor, while [...]

Dual low noise preamplifier, package DIP8
Datasheet:

Quad comperator, single supply 30V
Package DIP14
Datenblatt:

Precision Single OPV, Bipolar, Ubmax +/-22V, fg 1Mhz, package TO-99-8
NOS from the CSSR
Datasheet:

Replica of the MN3007 BBD from Panasonic
BBD circuit to delaed analog signals, 1024 stages, clock 10 - 100KHz, 5,12 to 51,2ms delay time, [...]