Gain 10 Amplifier (CB25636E)

Using a general-purpose transistor this AC amplifier was found in the November 1993 issue of Electronics Now.

Rain Alarm or Door Bell (CB5369E)
This circuit was found in a 1980s documentation. Q1 and Q2 can be BC548 and SCR a TIC106. The...
Sub Carrier Generator (CB4241E)
The basic purpose of this circuit is to apply an audio signal to a video carrier for sound and...
Tone Control (CB6306E)
This circuit was found in an Electronics World of 1969. The components of the time. The...