Buffer 4049 (CB26316E)

The purpose of this circuit found in a 1990s Popular Electronics is to increase the current capability of CMOS stages.

Fast trigger circuit with SCR (CB9280E)
Found in a 1964 Electronic Design, this circuit for 300 mA loads uses components from that period. It...
1.5 A TTL regulator LM317 (CB14303E)
The circuit presented was found in the Linear Applications Handbook of the National Semiconductor of 1994....
TCA940 amplifier (CB14789E)
This amplifier provides 7 W x 16V output and 10 W with 20 V in load of 4 ohms. At 8 ohms the power...