This circuit is from the Linear Applications Handbook of the National Semiconductor of 1994. Transistors are common, but the integrated circuit is not easy to obtain today.
This circuit can flash for up to 30 months using alkaline batteries as shown in the table next to the...
This circuit accurately monitors a 5 V TTL source. The circuit is from National Semiconductor's Linear...
The purpose of this circuit is to match two operational amplifiers that operate with different...