Emitter Follower Complementary Stage (CB25623E)

This circuit was found in the October 1993 Electronics Now magazine. The circuit can be used in a small audio amplifier.

1 KHz Band-Pass Filter (CB242E)
Only signals about 1 kHz can pass through this tuned circuit. The main component is a operational...
Voltage Reducer from 48 V to 15 V and 1.5 A (CB13006E)
To operate with high input voltages using a 3-terminal voltage regulator like the LM340-15, we can...
Astable variable 4093 (CB21124E)
This variable frequency oscillator with the 4093 was found in a Popular Electronics from the 90s....