Amplifier with different output (CB9057E)

This circuit was found in a 70s National Semiconductor manual. It has a different output way for coupling to the speaker.

CATV amplifier (CB9409E)
Found in a 1969 Electronics World, this circuit is intended for amplifying analog cable TV...
Sweep Generator (CB23681E)
This simple unijunction and bipolar generator appeared in Radio Electronics magazine in September 1865....
Mouser and Grant Imahara Showcase Contract Manufacturing in “Engineering Big Ideas” Video Finale
January 8, 2020 – Mouser Electronics, Inc. and celebrity engineer Grant Imahara today released the...