Memory Recorder (CB6786E)

This Harris circuit from the 90's is intended for recording old EPROM memories. The circuit uses components of the time.

MOSFET Stage (CB25576E)
This circuit shows how to use the 4007 MOSFETs in an amplifier stage. We found it in an...
Amplifier for piezoelectric transducer (CB12530E)
Operational amplifiers with field effect transistors at the input are ideal for applications where...
4 Channel Mixer (CB4921E)
This circuit is from an old National Semiconductor component manual. The circuit can be...