Flash memory programming power source (CB9322E)

This circuit was found in Maxim's documentation from the 90's. The circuit provides 12 V x 120 mA.

Dual Voltage Regulator LM2935T (CB14518E)
The circuit shown is from the Motorola Linear Databook from 1990. The circuit has two outputs with...
Variable Q Notch Filter (CB20084E)
This rejector filter that was found in a 1980 documentation uses an operational one at the time....
Safe Test (CB23569E)
This fuse test circuit was found in Radio Electronics magazine from August 1958. The circuit was...